Q: Answer the following question given this paragraph: Physical and chemical properties of geometric isomers are generally different. While cis -2-butene is a polar molecule, trans -2-butene is nonpolar. Heat or irradiation with light can be used to bring about the conversion of one geometric isomer to another. The input of energy must be large enough to break the pi bond between the two carbon atoms, which is weaker than the sigma bond. At that point, the now single bond is free to rotate and the isomers can interconvert. Q: Physical and chemical properties of geometric isomers are generally what? A:

OPTIONS:
- round
- difficult
- similar
- different

A: different

Q: Answer the following question given this paragraph: Imagine the thrill of riding on a roller coaster like this one! The coaster slowly crawls to the top of the track and then flies down the other side. It also zooms around twists and turns at breakneck speeds. These changes in speed and direction are what make a roller coaster ride so exciting. Changes in speed or direction are called acceleration. Q: What is the term for changes in speed or direction, changes that make a roller coaster ride so exciting? A:

OPTIONS:
- transmission
- inclination
- oscillation
- acceleration

A: acceleration

Q: Answer the following question given this paragraph: Waves are identified by several characteristics. There is a center line where the medium would be if there were no wave, which is sometimes describes as the undisturbed position. The displacement of the medium above this undisturbed position is called a crest and the displacement below the undisturbed position is called a trough . The maximums of the crest and trough are equal and are called the amplitude . The distance between equivalent positions on succeeding waves is called the wavelength . The wavelength could be measured from a crest to the next crest or from a trough to the next trough, and is commonly represented with the Greek letter lambda, . Q: Amplitude describes what about the wave's crest and trough? A:

OPTIONS:
- The minimum parts
- How frequently the parts occur
- The width of the parts
- the maximum parts

A: the maximum parts

Q: Answer the following question given this paragraph: Why does it snow instead of rain? Air temperature determines which type of precipitation falls. Rain falls if the air temperature is above freezing (0 C or 32 F). Frozen precipitation falls if the air or ground is below freezing. Frozen precipitation may fall as snow, sleet, or freezing rain. You can see how the different types form in Figure below . Q: What determines which type of precipitation falls? A:

OPTIONS:
- air pressure
- air currents
- ground temperature
- air temperature

A:
air temperature