# Astronomy college course/Chasing Pluto/mirror
## ChasingPluto

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### ChasingPluto-v1s1

1. While close to Jupiter, New Horizons the most spectacular image was of
    ___ a) a newly discovered moon
    ___ b) Jupiter's rings
    ___ c) a live volcano
    ___ d) the great red spot
2. As New Horizon's approaches Jupiter, it was essential that
    ___ a) avoid hitting the moons of Jupiter
    ___ b) avoid going into the rings of Jupiter
    ___ c) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
3. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
    ___ a) photographed PLUTO
    ___ b) called MOM
    ___ c) adjusted the ORBIT
    ___ d) photographed EARTH
4. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
    ___ a) 5 thousand times less power
    ___ b) 5 times more power
    ___ c) almost the same amount of power
    ___ d) 5 times less power
    ___ e) 5 thousand times more power
5. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
    ___ a) true
    ___ b) false
6. Energy for the New Horizon is provided by
    ___ a) nuclear power
    ___ b) fuel cells
    ___ c) solar power
    ___ d) lithium batteries
7. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
    ___ a) instruments on the New Horizon
    ___ b) the people responsible for calculating the orbit of New Horizon
    ___ c) named after friends of the cartoon charactor 'Pluto'
    ___ d) Kuiper objects discovered by New Horizon
    ___ e) asteroids discovered by New Horizon
8. The darker portions of Pluto are believe to be from "snowflakes" of
    ___ a) water
    ___ b) hydrocarbons
    ___ c) silicates
    ___ d) nitrogen
9. The Kuiper belt has been described as a ___________ made of ___________
    ___ a) deep freeze ... rock and ice
    ___ b) mystery band ... rock and metal
    ___ c) mystery band ... rock and ice
    ___ d) deep freeze ... rock and metal
10. What was the concern about taking a telescope/camera to the cold environment near Pluto?
    ___ a) the the mirror might crack
    ___ b) the telescope might bend
    ___ c) the electronics might fail
    ___ d) the plates might crack
11. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
    ___ a) Jupiter
    ___ b) the asteroid belt
    ___ c) the Moon
    ___ d) Mars
12. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
    ___ a) true
    ___ b) false
    ___ a)
    ___ b)
14. Silicon carbide was used to construct the telescope LORRI because this material is
    ___ a) light
    ___ b) not prone to warp at low temperature
    ___ c) strong
    ___ d) all of these
15. The blink comparator compared
    ___ a) the atmosphere around an object with the object itself
    ___ b) the location of an object on two different days
    ___ c) the size of two different objects
16. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
    ___ a) atmosphere
    ___ b) size
    ___ c) mass
    ___ a) a land-based telescope and the Hubble Space Telescope
    ___ b) New Horizon near Earth and mid-way to Pluto
    ___ c) New Horizon mid-way to Pluto and near Pluto
    ___ d) raw and processed images
    ___ e) New Horizon and the Hubble Space Telescope
18. Clyde Tombaugh, who discovered Pluto back in the 1930s
    ___ a) was self educated
    ___ b) privately funded the Lowell observatory
    ___ c) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
19. A stellar occultation occurs when a planet passes in front of a star
    ___ a) true
    ___ b) false
20. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
    ___ a) there were no new moons because moons are capable of capturing spacecraft
    ___ b) the New Horizon discovered three new moons
    ___ c) there were no new moons because moons are debris generators
21. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
    ___ a) true
    ___ b) false
22. As it approached Pluto, New Horizon was slightly larger than
    ___ a) a 10 story building
    ___ b) the Hubble Space Telescope
    ___ c) a grand piano
23. The trip by New Horizons from Earth to Pluto took almost a
    ___ a) week
    ___ b) month
    ___ c) century
    ___ d) decade
    ___ e) year
24. The "Chasing Pluto" video showed a stellar occultation that was observed
    ___ a) from the 200 inch Hale Telescope in 1968
    ___ b) from the Hubble Space Telescope in 1998
    ___ c) from a cargo plane in 1988
    ___ d) from the Keck Observatory in 1994
    ___ a)
    ___ b)
26. Clyde Tombaugh's reward for discovering Pluto was
    ___ a) a Nobel prize
    ___ b) a college education
    ___ c) an invitation to teach at Yale
27. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
    ___ a) sunlight
    ___ b) water
    ___ c) energy
    ___ d) organic matter
28. The atmosphere of Pluto
    ___ a) emerges when the surface thaws due to tidal heating from Neptune
    ___ b) emerges when the surface thaws as it approaches the Sun
    ___ c) emerges when the surface thaws due to tidal heating from Jupiter
    ___ d) emerges when the surface thaws due to tidal heating from the Moons
    ___ e) is mostly oxygen
29. Stellar occultation tells something about a planet because
    ___ a) the orientation of the planet's rotation about its axis can be precisely determined
    ___ b) the star acts as a light source for the detection of planetary spectral lines that are emission lines
    ___ c) blocking the nearby stars allows a better view of the planet
    ___ d) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
30. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
    ___ a) lies in the same plane as the other nine planets
    ___ b) is larger than Earth's moon
    ___ c) has a nearly circular orbit
    ___ d) has cleared the neighborhood around its orbit.
    ___ e) is more massive than Mercury
31. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
    ___ a) true
    ___ b) false
32. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
    ___ a) it had a surprisingly large influence on Pluto's orbit
    ___ b) it was surprisingly bright for an object moving that slowly
    ___ c) it was surprisingly bright for an object moving that quickly
    ___ d) It was brighter in the sky than Pluto

#### Key to ChasingPluto-v1s1

1. While close to Jupiter, New Horizons the most spectacular image was of
       - a) a newly discovered moon
       - b) Jupiter's rings
       + c) a live volcano
       - d) the great red spot
2. As New Horizon's approaches Jupiter, it was essential that
       - a) avoid hitting the moons of Jupiter
       - b) avoid going into the rings of Jupiter
       + c) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
3. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
       - a) photographed PLUTO
       + b) called MOM
       - c) adjusted the ORBIT
       - d) photographed EARTH
4. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
       + a) 5 thousand times less power
       - b) 5 times more power
       - c) almost the same amount of power
       - d) 5 times less power
       - e) 5 thousand times more power
5. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
       + a) true
       - b) false
6. Energy for the New Horizon is provided by
       + a) nuclear power
       - b) fuel cells
       - c) solar power
       - d) lithium batteries
7. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
       + a) instruments on the New Horizon
       - b) the people responsible for calculating the orbit of New Horizon
       - c) named after friends of the cartoon charactor 'Pluto'
       - d) Kuiper objects discovered by New Horizon
       - e) asteroids discovered by New Horizon
8. The darker portions of Pluto are believe to be from "snowflakes" of
       - a) water
       + b) hydrocarbons
       - c) silicates
       - d) nitrogen
9. The Kuiper belt has been described as a ___________ made of ___________
       + a) deep freeze ... rock and ice
       - b) mystery band ... rock and metal
       - c) mystery band ... rock and ice
       - d) deep freeze ... rock and metal
10. What was the concern about taking a telescope/camera to the cold environment near Pluto?
       - a) the the mirror might crack
       + b) the telescope might bend
       - c) the electronics might fail
       - d) the plates might crack
11. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
       - a) Jupiter
       - b) the asteroid belt
       + c) the Moon
       - d) Mars
12. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
       - a) true
       + b) false
       - a)
       + b)
14. Silicon carbide was used to construct the telescope LORRI because this material is
       - a) light
       - b) not prone to warp at low temperature
       - c) strong
       + d) all of these
15. The blink comparator compared
       - a) the atmosphere around an object with the object itself
       + b) the location of an object on two different days
       - c) the size of two different objects
16. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
       + a) atmosphere
       - b) size
       - c) mass
       - a) a land-based telescope and the Hubble Space Telescope
       - b) New Horizon near Earth and mid-way to Pluto
       - c) New Horizon mid-way to Pluto and near Pluto
       + d) raw and processed images
       - e) New Horizon and the Hubble Space Telescope
18. Clyde Tombaugh, who discovered Pluto back in the 1930s
       + a) was self educated
       - b) privately funded the Lowell observatory
       - c) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
19. A stellar occultation occurs when a planet passes in front of a star
       + a) true
       - b) false
20. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
       - a) there were no new moons because moons are capable of capturing spacecraft
       - b) the New Horizon discovered three new moons
       + c) there were no new moons because moons are debris generators
21. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
       - a) true
       + b) false
22. As it approached Pluto, New Horizon was slightly larger than
       - a) a 10 story building
       - b) the Hubble Space Telescope
       + c) a grand piano
23. The trip by New Horizons from Earth to Pluto took almost a
       - a) week
       - b) month
       - c) century
       + d) decade
       - e) year
24. The "Chasing Pluto" video showed a stellar occultation that was observed
       - a) from the 200 inch Hale Telescope in 1968
       - b) from the Hubble Space Telescope in 1998
       + c) from a cargo plane in 1988
       - d) from the Keck Observatory in 1994
       + a)
       - b)
26. Clyde Tombaugh's reward for discovering Pluto was
       - a) a Nobel prize
       + b) a college education
       - c) an invitation to teach at Yale
27. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
       + a) sunlight
       - b) water
       - c) energy
       - d) organic matter
28. The atmosphere of Pluto
       - a) emerges when the surface thaws due to tidal heating from Neptune
       + b) emerges when the surface thaws as it approaches the Sun
       - c) emerges when the surface thaws due to tidal heating from Jupiter
       - d) emerges when the surface thaws due to tidal heating from the Moons
       - e) is mostly oxygen
29. Stellar occultation tells something about a planet because
       - a) the orientation of the planet's rotation about its axis can be precisely determined
       - b) the star acts as a light source for the detection of planetary spectral lines that are emission lines
       - c) blocking the nearby stars allows a better view of the planet
       + d) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
30. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
       - a) lies in the same plane as the other nine planets
       - b) is larger than Earth's moon
       - c) has a nearly circular orbit
       + d) has cleared the neighborhood around its orbit.
       - e) is more massive than Mercury
31. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
       - a) true
       + b) false
32. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
       - a) it had a surprisingly large influence on Pluto's orbit
       + b) it was surprisingly bright for an object moving that slowly
       - c) it was surprisingly bright for an object moving that quickly
       - d) It was brighter in the sky than Pluto

### ChasingPluto-v2s1

1. A stellar occultation occurs when a planet passes in front of a star
    ___ a) true
    ___ b) false
2. Energy for the New Horizon is provided by
    ___ a) lithium batteries
    ___ b) solar power
    ___ c) fuel cells
    ___ d) nuclear power
3. The "Chasing Pluto" video showed a stellar occultation that was observed
    ___ a) from the 200 inch Hale Telescope in 1968
    ___ b) from the Hubble Space Telescope in 1998
    ___ c) from the Keck Observatory in 1994
    ___ d) from a cargo plane in 1988
4. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
    ___ a) sunlight
    ___ b) energy
    ___ c) water
    ___ d) organic matter
5. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
    ___ a) there were no new moons because moons are capable of capturing spacecraft
    ___ b) there were no new moons because moons are debris generators
    ___ c) the New Horizon discovered three new moons
6. The blink comparator compared
    ___ a) the atmosphere around an object with the object itself
    ___ b) the size of two different objects
    ___ c) the location of an object on two different days
7. Silicon carbide was used to construct the telescope LORRI because this material is
    ___ a) light
    ___ b) all of these
    ___ c) strong
    ___ d) not prone to warp at low temperature
8. What was the concern about taking a telescope/camera to the cold environment near Pluto?
    ___ a) the the mirror might crack
    ___ b) the electronics might fail
    ___ c) the plates might crack
    ___ d) the telescope might bend
9. The darker portions of Pluto are believe to be from "snowflakes" of
    ___ a) nitrogen
    ___ b) water
    ___ c) silicates
    ___ d) hydrocarbons
10. Stellar occultation tells something about a planet because
    ___ a) the orientation of the planet's rotation about its axis can be precisely determined
    ___ b) blocking the nearby stars allows a better view of the planet
    ___ c) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
    ___ d) the star acts as a light source for the detection of planetary spectral lines that are emission lines
11. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
    ___ a) true
    ___ b) false
12. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
    ___ a) size
    ___ b) atmosphere
    ___ c) mass
13. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
    ___ a) it was surprisingly bright for an object moving that quickly
    ___ b) it was surprisingly bright for an object moving that slowly
    ___ c) It was brighter in the sky than Pluto
    ___ d) it had a surprisingly large influence on Pluto's orbit
14. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
    ___ a) has a nearly circular orbit
    ___ b) is larger than Earth's moon
    ___ c) lies in the same plane as the other nine planets
    ___ d) has cleared the neighborhood around its orbit.
    ___ e) is more massive than Mercury
15. The atmosphere of Pluto
    ___ a) emerges when the surface thaws due to tidal heating from Neptune
    ___ b) is mostly oxygen
    ___ c) emerges when the surface thaws due to tidal heating from Jupiter
    ___ d) emerges when the surface thaws as it approaches the Sun
    ___ e) emerges when the surface thaws due to tidal heating from the Moons
16. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
    ___ a) true
    ___ b) false
17. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
    ___ a) true
    ___ b) false
18. The Kuiper belt has been described as a ___________ made of ___________
    ___ a) deep freeze ... rock and ice
    ___ b) mystery band ... rock and ice
    ___ c) mystery band ... rock and metal
    ___ d) deep freeze ... rock and metal
    ___ a)
    ___ b)
20. Clyde Tombaugh, who discovered Pluto back in the 1930s
    ___ a) privately funded the Lowell observatory
    ___ b) was self educated
    ___ c) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
21. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
    ___ a) 5 thousand times more power
    ___ b) 5 thousand times less power
    ___ c) 5 times more power
    ___ d) almost the same amount of power
    ___ e) 5 times less power
22. The trip by New Horizons from Earth to Pluto took almost a
    ___ a) week
    ___ b) month
    ___ c) decade
    ___ d) century
    ___ e) year
23. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
    ___ a) the people responsible for calculating the orbit of New Horizon
    ___ b) Kuiper objects discovered by New Horizon
    ___ c) asteroids discovered by New Horizon
    ___ d) instruments on the New Horizon
    ___ e) named after friends of the cartoon charactor 'Pluto'
24. As New Horizon's approaches Jupiter, it was essential that
    ___ a) avoid going into the rings of Jupiter
    ___ b) avoid hitting the moons of Jupiter
    ___ c) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
25. While close to Jupiter, New Horizons the most spectacular image was of
    ___ a) the great red spot
    ___ b) Jupiter's rings
    ___ c) a newly discovered moon
    ___ d) a live volcano
    ___ a) New Horizon near Earth and mid-way to Pluto
    ___ b) a land-based telescope and the Hubble Space Telescope
    ___ c) New Horizon mid-way to Pluto and near Pluto
    ___ d) raw and processed images
    ___ e) New Horizon and the Hubble Space Telescope
27. As it approached Pluto, New Horizon was slightly larger than
    ___ a) a 10 story building
    ___ b) a grand piano
    ___ c) the Hubble Space Telescope
28. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
    ___ a) true
    ___ b) false
29. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
    ___ a) photographed PLUTO
    ___ b) photographed EARTH
    ___ c) called MOM
    ___ d) adjusted the ORBIT
30. Clyde Tombaugh's reward for discovering Pluto was
    ___ a) an invitation to teach at Yale
    ___ b) a college education
    ___ c) a Nobel prize
31. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
    ___ a) Mars
    ___ b) Jupiter
    ___ c) the Moon
    ___ d) the asteroid belt
    ___ a)
    ___ b)

#### Key to ChasingPluto-v2s1

1. A stellar occultation occurs when a planet passes in front of a star
       + a) true
       - b) false
2. Energy for the New Horizon is provided by
       - a) lithium batteries
       - b) solar power
       - c) fuel cells
       + d) nuclear power
3. The "Chasing Pluto" video showed a stellar occultation that was observed
       - a) from the 200 inch Hale Telescope in 1968
       - b) from the Hubble Space Telescope in 1998
       - c) from the Keck Observatory in 1994
       + d) from a cargo plane in 1988
4. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
       + a) sunlight
       - b) energy
       - c) water
       - d) organic matter
5. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
       - a) there were no new moons because moons are capable of capturing spacecraft
       + b) there were no new moons because moons are debris generators
       - c) the New Horizon discovered three new moons
6. The blink comparator compared
       - a) the atmosphere around an object with the object itself
       - b) the size of two different objects
       + c) the location of an object on two different days
7. Silicon carbide was used to construct the telescope LORRI because this material is
       - a) light
       + b) all of these
       - c) strong
       - d) not prone to warp at low temperature
8. What was the concern about taking a telescope/camera to the cold environment near Pluto?
       - a) the the mirror might crack
       - b) the electronics might fail
       - c) the plates might crack
       + d) the telescope might bend
9. The darker portions of Pluto are believe to be from "snowflakes" of
       - a) nitrogen
       - b) water
       - c) silicates
       + d) hydrocarbons
10. Stellar occultation tells something about a planet because
       - a) the orientation of the planet's rotation about its axis can be precisely determined
       - b) blocking the nearby stars allows a better view of the planet
       + c) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
       - d) the star acts as a light source for the detection of planetary spectral lines that are emission lines
11. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
       - a) true
       + b) false
12. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
       - a) size
       + b) atmosphere
       - c) mass
13. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
       - a) it was surprisingly bright for an object moving that quickly
       + b) it was surprisingly bright for an object moving that slowly
       - c) It was brighter in the sky than Pluto
       - d) it had a surprisingly large influence on Pluto's orbit
14. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
       - a) has a nearly circular orbit
       - b) is larger than Earth's moon
       - c) lies in the same plane as the other nine planets
       + d) has cleared the neighborhood around its orbit.
       - e) is more massive than Mercury
15. The atmosphere of Pluto
       - a) emerges when the surface thaws due to tidal heating from Neptune
       - b) is mostly oxygen
       - c) emerges when the surface thaws due to tidal heating from Jupiter
       + d) emerges when the surface thaws as it approaches the Sun
       - e) emerges when the surface thaws due to tidal heating from the Moons
16. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
       - a) true
       + b) false
17. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
       + a) true
       - b) false
18. The Kuiper belt has been described as a ___________ made of ___________
       + a) deep freeze ... rock and ice
       - b) mystery band ... rock and ice
       - c) mystery band ... rock and metal
       - d) deep freeze ... rock and metal
       + a)
       - b)
20. Clyde Tombaugh, who discovered Pluto back in the 1930s
       - a) privately funded the Lowell observatory
       + b) was self educated
       - c) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
21. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
       - a) 5 thousand times more power
       + b) 5 thousand times less power
       - c) 5 times more power
       - d) almost the same amount of power
       - e) 5 times less power
22. The trip by New Horizons from Earth to Pluto took almost a
       - a) week
       - b) month
       + c) decade
       - d) century
       - e) year
23. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
       - a) the people responsible for calculating the orbit of New Horizon
       - b) Kuiper objects discovered by New Horizon
       - c) asteroids discovered by New Horizon
       + d) instruments on the New Horizon
       - e) named after friends of the cartoon charactor 'Pluto'
24. As New Horizon's approaches Jupiter, it was essential that
       - a) avoid going into the rings of Jupiter
       - b) avoid hitting the moons of Jupiter
       + c) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
25. While close to Jupiter, New Horizons the most spectacular image was of
       - a) the great red spot
       - b) Jupiter's rings
       - c) a newly discovered moon
       + d) a live volcano
       - a) New Horizon near Earth and mid-way to Pluto
       - b) a land-based telescope and the Hubble Space Telescope
       - c) New Horizon mid-way to Pluto and near Pluto
       + d) raw and processed images
       - e) New Horizon and the Hubble Space Telescope
27. As it approached Pluto, New Horizon was slightly larger than
       - a) a 10 story building
       + b) a grand piano
       - c) the Hubble Space Telescope
28. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
       - a) true
       + b) false
29. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
       - a) photographed PLUTO
       - b) photographed EARTH
       + c) called MOM
       - d) adjusted the ORBIT
30. Clyde Tombaugh's reward for discovering Pluto was
       - a) an invitation to teach at Yale
       + b) a college education
       - c) a Nobel prize
31. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
       - a) Mars
       - b) Jupiter
       + c) the Moon
       - d) the asteroid belt
       - a)
       + b)

### ChasingPluto-v1s2

1. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
    ___ a) named after friends of the cartoon charactor 'Pluto'
    ___ b) the people responsible for calculating the orbit of New Horizon
    ___ c) instruments on the New Horizon
    ___ d) asteroids discovered by New Horizon
    ___ e) Kuiper objects discovered by New Horizon
2. The trip by New Horizons from Earth to Pluto took almost a
    ___ a) week
    ___ b) year
    ___ c) month
    ___ d) century
    ___ e) decade
3. Clyde Tombaugh's reward for discovering Pluto was
    ___ a) an invitation to teach at Yale
    ___ b) a college education
    ___ c) a Nobel prize
4. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
    ___ a) it was surprisingly bright for an object moving that quickly
    ___ b) it was surprisingly bright for an object moving that slowly
    ___ c) It was brighter in the sky than Pluto
    ___ d) it had a surprisingly large influence on Pluto's orbit
5. The Kuiper belt has been described as a ___________ made of ___________
    ___ a) deep freeze ... rock and metal
    ___ b) mystery band ... rock and metal
    ___ c) mystery band ... rock and ice
    ___ d) deep freeze ... rock and ice
6. Clyde Tombaugh, who discovered Pluto back in the 1930s
    ___ a) was self educated
    ___ b) privately funded the Lowell observatory
    ___ c) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
7. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
    ___ a) true
    ___ b) false
8. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
    ___ a) there were no new moons because moons are debris generators
    ___ b) the New Horizon discovered three new moons
    ___ c) there were no new moons because moons are capable of capturing spacecraft
9. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
    ___ a) the Moon
    ___ b) the asteroid belt
    ___ c) Mars
    ___ d) Jupiter
10. Energy for the New Horizon is provided by
    ___ a) nuclear power
    ___ b) fuel cells
    ___ c) lithium batteries
    ___ d) solar power
    ___ a)
    ___ b)
    ___ a) New Horizon near Earth and mid-way to Pluto
    ___ b) New Horizon and the Hubble Space Telescope
    ___ c) raw and processed images
    ___ d) a land-based telescope and the Hubble Space Telescope
    ___ e) New Horizon mid-way to Pluto and near Pluto
13. The "Chasing Pluto" video showed a stellar occultation that was observed
    ___ a) from the Hubble Space Telescope in 1998
    ___ b) from the 200 inch Hale Telescope in 1968
    ___ c) from the Keck Observatory in 1994
    ___ d) from a cargo plane in 1988
14. What was the concern about taking a telescope/camera to the cold environment near Pluto?
    ___ a) the telescope might bend
    ___ b) the electronics might fail
    ___ c) the the mirror might crack
    ___ d) the plates might crack
15. The atmosphere of Pluto
    ___ a) emerges when the surface thaws as it approaches the Sun
    ___ b) is mostly oxygen
    ___ c) emerges when the surface thaws due to tidal heating from the Moons
    ___ d) emerges when the surface thaws due to tidal heating from Jupiter
    ___ e) emerges when the surface thaws due to tidal heating from Neptune
16. As New Horizon's approaches Jupiter, it was essential that
    ___ a) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
    ___ b) avoid hitting the moons of Jupiter
    ___ c) avoid going into the rings of Jupiter
17. As it approached Pluto, New Horizon was slightly larger than
    ___ a) a grand piano
    ___ b) a 10 story building
    ___ c) the Hubble Space Telescope
18. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
    ___ a) 5 thousand times less power
    ___ b) 5 times more power
    ___ c) 5 thousand times more power
    ___ d) almost the same amount of power
    ___ e) 5 times less power
19. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
    ___ a) lies in the same plane as the other nine planets
    ___ b) is larger than Earth's moon
    ___ c) is more massive than Mercury
    ___ d) has cleared the neighborhood around its orbit.
    ___ e) has a nearly circular orbit
    ___ a)
    ___ b)
21. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
    ___ a) true
    ___ b) false
22. A stellar occultation occurs when a planet passes in front of a star
    ___ a) true
    ___ b) false
23. The darker portions of Pluto are believe to be from "snowflakes" of
    ___ a) water
    ___ b) nitrogen
    ___ c) silicates
    ___ d) hydrocarbons
24. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
    ___ a) mass
    ___ b) atmosphere
    ___ c) size
25. While close to Jupiter, New Horizons the most spectacular image was of
    ___ a) a live volcano
    ___ b) a newly discovered moon
    ___ c) the great red spot
    ___ d) Jupiter's rings
26. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
    ___ a) photographed EARTH
    ___ b) photographed PLUTO
    ___ c) adjusted the ORBIT
    ___ d) called MOM
27. The blink comparator compared
    ___ a) the location of an object on two different days
    ___ b) the size of two different objects
    ___ c) the atmosphere around an object with the object itself
28. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
    ___ a) true
    ___ b) false
29. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
    ___ a) true
    ___ b) false
30. Stellar occultation tells something about a planet because
    ___ a) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
    ___ b) blocking the nearby stars allows a better view of the planet
    ___ c) the star acts as a light source for the detection of planetary spectral lines that are emission lines
    ___ d) the orientation of the planet's rotation about its axis can be precisely determined
31. Silicon carbide was used to construct the telescope LORRI because this material is
    ___ a) strong
    ___ b) not prone to warp at low temperature
    ___ c) light
    ___ d) all of these
32. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
    ___ a) water
    ___ b) organic matter
    ___ c) sunlight
    ___ d) energy

#### Key to ChasingPluto-v1s2

1. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
       - a) named after friends of the cartoon charactor 'Pluto'
       - b) the people responsible for calculating the orbit of New Horizon
       + c) instruments on the New Horizon
       - d) asteroids discovered by New Horizon
       - e) Kuiper objects discovered by New Horizon
2. The trip by New Horizons from Earth to Pluto took almost a
       - a) week
       - b) year
       - c) month
       - d) century
       + e) decade
3. Clyde Tombaugh's reward for discovering Pluto was
       - a) an invitation to teach at Yale
       + b) a college education
       - c) a Nobel prize
4. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
       - a) it was surprisingly bright for an object moving that quickly
       + b) it was surprisingly bright for an object moving that slowly
       - c) It was brighter in the sky than Pluto
       - d) it had a surprisingly large influence on Pluto's orbit
5. The Kuiper belt has been described as a ___________ made of ___________
       - a) deep freeze ... rock and metal
       - b) mystery band ... rock and metal
       - c) mystery band ... rock and ice
       + d) deep freeze ... rock and ice
6. Clyde Tombaugh, who discovered Pluto back in the 1930s
       + a) was self educated
       - b) privately funded the Lowell observatory
       - c) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
7. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
       + a) true
       - b) false
8. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
       + a) there were no new moons because moons are debris generators
       - b) the New Horizon discovered three new moons
       - c) there were no new moons because moons are capable of capturing spacecraft
9. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
       + a) the Moon
       - b) the asteroid belt
       - c) Mars
       - d) Jupiter
10. Energy for the New Horizon is provided by
       + a) nuclear power
       - b) fuel cells
       - c) lithium batteries
       - d) solar power
       - a)
       + b)
       - a) New Horizon near Earth and mid-way to Pluto
       - b) New Horizon and the Hubble Space Telescope
       + c) raw and processed images
       - d) a land-based telescope and the Hubble Space Telescope
       - e) New Horizon mid-way to Pluto and near Pluto
13. The "Chasing Pluto" video showed a stellar occultation that was observed
       - a) from the Hubble Space Telescope in 1998
       - b) from the 200 inch Hale Telescope in 1968
       - c) from the Keck Observatory in 1994
       + d) from a cargo plane in 1988
14. What was the concern about taking a telescope/camera to the cold environment near Pluto?
       + a) the telescope might bend
       - b) the electronics might fail
       - c) the the mirror might crack
       - d) the plates might crack
15. The atmosphere of Pluto
       + a) emerges when the surface thaws as it approaches the Sun
       - b) is mostly oxygen
       - c) emerges when the surface thaws due to tidal heating from the Moons
       - d) emerges when the surface thaws due to tidal heating from Jupiter
       - e) emerges when the surface thaws due to tidal heating from Neptune
16. As New Horizon's approaches Jupiter, it was essential that
       + a) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
       - b) avoid hitting the moons of Jupiter
       - c) avoid going into the rings of Jupiter
17. As it approached Pluto, New Horizon was slightly larger than
       + a) a grand piano
       - b) a 10 story building
       - c) the Hubble Space Telescope
18. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
       + a) 5 thousand times less power
       - b) 5 times more power
       - c) 5 thousand times more power
       - d) almost the same amount of power
       - e) 5 times less power
19. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
       - a) lies in the same plane as the other nine planets
       - b) is larger than Earth's moon
       - c) is more massive than Mercury
       + d) has cleared the neighborhood around its orbit.
       - e) has a nearly circular orbit
       + a)
       - b)
21. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
       - a) true
       + b) false
22. A stellar occultation occurs when a planet passes in front of a star
       + a) true
       - b) false
23. The darker portions of Pluto are believe to be from "snowflakes" of
       - a) water
       - b) nitrogen
       - c) silicates
       + d) hydrocarbons
24. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
       - a) mass
       + b) atmosphere
       - c) size
25. While close to Jupiter, New Horizons the most spectacular image was of
       + a) a live volcano
       - b) a newly discovered moon
       - c) the great red spot
       - d) Jupiter's rings
26. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
       - a) photographed EARTH
       - b) photographed PLUTO
       - c) adjusted the ORBIT
       + d) called MOM
27. The blink comparator compared
       + a) the location of an object on two different days
       - b) the size of two different objects
       - c) the atmosphere around an object with the object itself
28. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
       - a) true
       + b) false
29. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
       - a) true
       + b) false
30. Stellar occultation tells something about a planet because
       + a) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
       - b) blocking the nearby stars allows a better view of the planet
       - c) the star acts as a light source for the detection of planetary spectral lines that are emission lines
       - d) the orientation of the planet's rotation about its axis can be precisely determined
31. Silicon carbide was used to construct the telescope LORRI because this material is
       - a) strong
       - b) not prone to warp at low temperature
       - c) light
       + d) all of these
32. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
       - a) water
       - b) organic matter
       + c) sunlight
       - d) energy

### ChasingPluto-v2s2

1. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
    ___ a) true
    ___ b) false
2. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
    ___ a) true
    ___ b) false
    ___ a)
    ___ b)
4. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
    ___ a) called MOM
    ___ b) photographed EARTH
    ___ c) photographed PLUTO
    ___ d) adjusted the ORBIT
5. The Kuiper belt has been described as a ___________ made of ___________
    ___ a) deep freeze ... rock and ice
    ___ b) mystery band ... rock and ice
    ___ c) deep freeze ... rock and metal
    ___ d) mystery band ... rock and metal
6. While close to Jupiter, New Horizons the most spectacular image was of
    ___ a) a live volcano
    ___ b) Jupiter's rings
    ___ c) the great red spot
    ___ d) a newly discovered moon
7. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
    ___ a) true
    ___ b) false
8. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
    ___ a) atmosphere
    ___ b) size
    ___ c) mass
9. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
    ___ a) instruments on the New Horizon
    ___ b) asteroids discovered by New Horizon
    ___ c) Kuiper objects discovered by New Horizon
    ___ d) the people responsible for calculating the orbit of New Horizon
    ___ e) named after friends of the cartoon charactor 'Pluto'
10. The darker portions of Pluto are believe to be from "snowflakes" of
    ___ a) water
    ___ b) hydrocarbons
    ___ c) silicates
    ___ d) nitrogen
11. The trip by New Horizons from Earth to Pluto took almost a
    ___ a) century
    ___ b) decade
    ___ c) year
    ___ d) month
    ___ e) week
12. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
    ___ a) water
    ___ b) sunlight
    ___ c) organic matter
    ___ d) energy
13. As it approached Pluto, New Horizon was slightly larger than
    ___ a) a grand piano
    ___ b) the Hubble Space Telescope
    ___ c) a 10 story building
14. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
    ___ a) true
    ___ b) false
15. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
    ___ a) the asteroid belt
    ___ b) Jupiter
    ___ c) the Moon
    ___ d) Mars
16. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
    ___ a) the New Horizon discovered three new moons
    ___ b) there were no new moons because moons are capable of capturing spacecraft
    ___ c) there were no new moons because moons are debris generators
17. The atmosphere of Pluto
    ___ a) emerges when the surface thaws as it approaches the Sun
    ___ b) emerges when the surface thaws due to tidal heating from Neptune
    ___ c) emerges when the surface thaws due to tidal heating from the Moons
    ___ d) emerges when the surface thaws due to tidal heating from Jupiter
    ___ e) is mostly oxygen
18. A stellar occultation occurs when a planet passes in front of a star
    ___ a) true
    ___ b) false
19. As New Horizon's approaches Jupiter, it was essential that
    ___ a) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
    ___ b) avoid hitting the moons of Jupiter
    ___ c) avoid going into the rings of Jupiter
20. The "Chasing Pluto" video showed a stellar occultation that was observed
    ___ a) from the 200 inch Hale Telescope in 1968
    ___ b) from the Hubble Space Telescope in 1998
    ___ c) from the Keck Observatory in 1994
    ___ d) from a cargo plane in 1988
21. Clyde Tombaugh's reward for discovering Pluto was
    ___ a) a Nobel prize
    ___ b) a college education
    ___ c) an invitation to teach at Yale
22. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
    ___ a) it was surprisingly bright for an object moving that quickly
    ___ b) it had a surprisingly large influence on Pluto's orbit
    ___ c) It was brighter in the sky than Pluto
    ___ d) it was surprisingly bright for an object moving that slowly
    ___ a) New Horizon mid-way to Pluto and near Pluto
    ___ b) raw and processed images
    ___ c) New Horizon and the Hubble Space Telescope
    ___ d) New Horizon near Earth and mid-way to Pluto
    ___ e) a land-based telescope and the Hubble Space Telescope
24. Stellar occultation tells something about a planet because
    ___ a) the orientation of the planet's rotation about its axis can be precisely determined
    ___ b) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
    ___ c) the star acts as a light source for the detection of planetary spectral lines that are emission lines
    ___ d) blocking the nearby stars allows a better view of the planet
25. The blink comparator compared
    ___ a) the atmosphere around an object with the object itself
    ___ b) the location of an object on two different days
    ___ c) the size of two different objects
26. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
    ___ a) 5 thousand times more power
    ___ b) 5 times more power
    ___ c) 5 thousand times less power
    ___ d) almost the same amount of power
    ___ e) 5 times less power
    ___ a)
    ___ b)
28. Energy for the New Horizon is provided by
    ___ a) fuel cells
    ___ b) lithium batteries
    ___ c) solar power
    ___ d) nuclear power
29. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
    ___ a) has cleared the neighborhood around its orbit.
    ___ b) lies in the same plane as the other nine planets
    ___ c) is larger than Earth's moon
    ___ d) is more massive than Mercury
    ___ e) has a nearly circular orbit
30. What was the concern about taking a telescope/camera to the cold environment near Pluto?
    ___ a) the electronics might fail
    ___ b) the the mirror might crack
    ___ c) the telescope might bend
    ___ d) the plates might crack
31. Silicon carbide was used to construct the telescope LORRI because this material is
    ___ a) strong
    ___ b) all of these
    ___ c) not prone to warp at low temperature
    ___ d) light
32. Clyde Tombaugh, who discovered Pluto back in the 1930s
    ___ a) was self educated
    ___ b) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
    ___ c) privately funded the Lowell observatory

#### Key to ChasingPluto-v2s2

1. The influence of Jupiter's gravity on Pluto is that Jupiter gradually brings Pluto closer
       - a) true
       + b) false
2. A stellar occultation occurs when the north or south pole of a planet is aligned with a star
       - a) true
       + b) false
       + a)
       - b)
4. For most of its nine-year journey, it was asleep, but once a week, the New Horizon's spacecraft
       + a) called MOM
       - b) photographed EARTH
       - c) photographed PLUTO
       - d) adjusted the ORBIT
5. The Kuiper belt has been described as a ___________ made of ___________
       + a) deep freeze ... rock and ice
       - b) mystery band ... rock and ice
       - c) deep freeze ... rock and metal
       - d) mystery band ... rock and metal
6. While close to Jupiter, New Horizons the most spectacular image was of
       + a) a live volcano
       - b) Jupiter's rings
       - c) the great red spot
       - d) a newly discovered moon
7. The influence of Jupiter's gravity on Pluto is that Jupiter gradually pushes Pluto away
       + a) true
       - b) false
8. The "Chasing Pluto" video showed a stellar occultation that was observed in order to learn something about Pluto's
       + a) atmosphere
       - b) size
       - c) mass
9. "Pepssi", "Rex", "Swap", "Lorri", "Alice" and "Ralf" are
       + a) instruments on the New Horizon
       - b) asteroids discovered by New Horizon
       - c) Kuiper objects discovered by New Horizon
       - d) the people responsible for calculating the orbit of New Horizon
       - e) named after friends of the cartoon charactor 'Pluto'
10. The darker portions of Pluto are believe to be from "snowflakes" of
       - a) water
       + b) hydrocarbons
       - c) silicates
       - d) nitrogen
11. The trip by New Horizons from Earth to Pluto took almost a
       - a) century
       + b) decade
       - c) year
       - d) month
       - e) week
12. Which was NOT listed as one of the three things commonly considered necessary for the formation of life?
       - a) water
       + b) sunlight
       - c) organic matter
       - d) energy
13. As it approached Pluto, New Horizon was slightly larger than
       + a) a grand piano
       - b) the Hubble Space Telescope
       - c) a 10 story building
14. When the discovery of the "ninth planet" was made in 1930, the name Pluto was chosen after a cartoon that was a common childhood experience shared by most astronomers of the day
       - a) true
       + b) false
15. The time to reach __________ was shortened from 9 days to 3 hours due to the speed of the rocket that delivered New Horizons
       - a) the asteroid belt
       - b) Jupiter
       + c) the Moon
       - d) Mars
16. As New Horizon approached Jupiter, it looked for new Moons, and the ground crew was glad that
       - a) the New Horizon discovered three new moons
       - b) there were no new moons because moons are capable of capturing spacecraft
       + c) there were no new moons because moons are debris generators
17. The atmosphere of Pluto
       + a) emerges when the surface thaws as it approaches the Sun
       - b) emerges when the surface thaws due to tidal heating from Neptune
       - c) emerges when the surface thaws due to tidal heating from the Moons
       - d) emerges when the surface thaws due to tidal heating from Jupiter
       - e) is mostly oxygen
18. A stellar occultation occurs when a planet passes in front of a star
       + a) true
       - b) false
19. As New Horizon's approaches Jupiter, it was essential that
       + a) it approach Jupiter closely enough for Jupiter's gravity to pull New Horizons to a 20% higher speed
       - b) avoid hitting the moons of Jupiter
       - c) avoid going into the rings of Jupiter
20. The "Chasing Pluto" video showed a stellar occultation that was observed
       - a) from the 200 inch Hale Telescope in 1968
       - b) from the Hubble Space Telescope in 1998
       - c) from the Keck Observatory in 1994
       + d) from a cargo plane in 1988
21. Clyde Tombaugh's reward for discovering Pluto was
       - a) a Nobel prize
       + b) a college education
       - c) an invitation to teach at Yale
22. Mike Brown's search for another Pluto-like object eventually led to the discovery of Eris in 2005. What was the first clue that Eris was larger than Pluto?
       - a) it was surprisingly bright for an object moving that quickly
       - b) it had a surprisingly large influence on Pluto's orbit
       - c) It was brighter in the sky than Pluto
       + d) it was surprisingly bright for an object moving that slowly
       - a) New Horizon mid-way to Pluto and near Pluto
       + b) raw and processed images
       - c) New Horizon and the Hubble Space Telescope
       - d) New Horizon near Earth and mid-way to Pluto
       - e) a land-based telescope and the Hubble Space Telescope
24. Stellar occultation tells something about a planet because
       - a) the orientation of the planet's rotation about its axis can be precisely determined
       + b) the star acts as a light source for the detection of planetary spectral lines that are absorption lines
       - c) the star acts as a light source for the detection of planetary spectral lines that are emission lines
       - d) blocking the nearby stars allows a better view of the planet
25. The blink comparator compared
       - a) the atmosphere around an object with the object itself
       + b) the location of an object on two different days
       - c) the size of two different objects
26. A typical average radio station uses 50,000 watts to transmit a signal. The transmitter on New Horizons used
       - a) 5 thousand times more power
       - b) 5 times more power
       + c) 5 thousand times less power
       - d) almost the same amount of power
       - e) 5 times less power
       - a)
       + b)
28. Energy for the New Horizon is provided by
       - a) fuel cells
       - b) lithium batteries
       - c) solar power
       + d) nuclear power
29. Pluto ceased to be called a planet in 2006, after the IAU defined a planet of our Sun as an object that is (1) in orbit around the Sun, (2) roughly spherical due to it's mass, and (3):
       + a) has cleared the neighborhood around its orbit.
       - b) lies in the same plane as the other nine planets
       - c) is larger than Earth's moon
       - d) is more massive than Mercury
       - e) has a nearly circular orbit
30. What was the concern about taking a telescope/camera to the cold environment near Pluto?
       - a) the electronics might fail
       - b) the the mirror might crack
       + c) the telescope might bend
       - d) the plates might crack
31. Silicon carbide was used to construct the telescope LORRI because this material is
       - a) strong
       + b) all of these
       - c) not prone to warp at low temperature
       - d) light
32. Clyde Tombaugh, who discovered Pluto back in the 1930s
       + a) was self educated
       - b) had resigned from a position at Yale to focus his efforts on discovering "Planet X"
       - c) privately funded the Lowell observatory

   ##### Attribution (for quiz questions) under CC-by-SA license

    Editing Astronomy college course/Chasing Pluto

   ##### Study guide

    http://video.pbs.org/program/nova/