*Question*
Answer the following question given this paragraph: with a minus sign because the displacement while stopping and the force from floor are in opposite directions (cos = cos 180 = 1) . The floor removes energy from the system, so it does negative work. The kinetic energy the person has upon reaching the floor is the amount of potential energy lost by falling through height. Q: When someone falls, the kinetic energy the person has upon reaching the floor is the amount of what energy lost by falling through height? Choices: - gravitational energy - thermal energy - nuclear energy - potential energy A:
**Answer**
potential energy

*Question*
Answer the following question given this paragraph: The Moon has a crust, mantle, and core. Q: The moon has a crust, mantle, and a? Choices: - ice cap - magnetic field - mountain range - core A:
**Answer**
core

*Question*
Answer the following question given this paragraph: The chloroplasts contain a green pigment called chlorophyll, which captures the energy of sunlight for photosynthesis. Like plant cells, photosynthetic protists also have chloroplasts. Some bacteria also perform photosynthesis, but they do not have chloroplasts. Their photosynthetic pigments are located in the thylakoid membrane within the cell itself. Q: The chloroplasts contain a green pigment called what? Choices: - chloroplasm - sodium - melanin - chlorophyll A:
**Answer**
chlorophyll

*Question*
Answer the following question given this paragraph: The pancreas and liver secrete fluids that aid in digestion. Q: What two organs secrete fluids that aid in digestion? Choices: - kidney and gall bladder - stomach and lung - spleen and bladder - pancreas and liver A:
**Answer**
pancreas and liver