| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
kinetic |
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gravitational |
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potential |
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inherent |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.
A large naturally occurring community of flora and fauna occupying a major habitat is:
a food chain |
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a community |
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a biome |
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a population |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Water freezing or boiling is an example of which of the following?
cooling |
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sublimation |
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phase transition |
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heating |
A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
molecule |
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element |
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atom |
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compound |
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.
Water has a refractive index of 1.33. Which of the following is true?
light is 1.33 times brighter in a vacuum than it is in water |
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light travels 1.33 times slower in a vacuum than it does in water |
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light travels 1.33 times faster in a vacuum than it does in water |
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light is 1.33 times dimmer in a vacuum than it is in water |
The speed of light varies based on the material that the waves are passing through. The refractive index of a material indicates how easily light travels through it compared to how easily light travels through a vacuum. For example, the refractive index of water is 1.33, meaning that light travels 1.33 times faster in a vacuum than it does in water.