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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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1. What is the main difference between the condensation hypothesis and the tidal hypothesis for the origin of the solar system?
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b. The tidal hypothesis proposes a near collision of two stars pulling on each other, but the condensation hypothesis proposes condensation of rotating clouds of dust and gas.
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Skill 1.1 r
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2 Which of the following is the best definition for a meteorite?
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b. A meteorite is material from outer space that has struck the earth's surface.
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Skill 1.2 ar
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3. The force of gravity on earth causes all free bodies in free fall to ...
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b. accelerate at the same rate.
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Skill 1.3 ar
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4. The electromagnetic radiation with the longest wave length are...
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a. radio waves
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Skill 1.6 r
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5. When heat is added to most solids, they expand. Why is this the case?
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b. The faster molecule motion leads to a greater distance between molecules.
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Skill 2.1 ar
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6. Which of the following is not true about phase change in matter?
a.solid water and liquid ice can coexist a water's freezing point. b.at 7 degrees Celsius, water is always in liquid phase. c.matter changes phase when enough energy is gained or lost. d. different phases of matter are characterized by differences in molecular motion. |
b.at 7 degrees Celsius, water is always in liquid phase.
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Skill 2.1 r
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7. What is the most accurate description of the water cycle?
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c. water is conserved except for chemical or nuclear reactions, and any drop of water could through clouds, rain, ground-water, and surface water.
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Skill 2.2 e
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8. What is the source of most of the U.S's drinking water?
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d. groundwater
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Skill 2.2 e
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9. The salinity of ocean water is closest to...
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c. 3.5 %
Double check this |
Skill 2.5 r
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10. The transfer of hear by electromagnetic waves is called...
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d. radiation.
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Skill 3.2 e
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