| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
What part of the brain is responsible for for balance, movement, and muscle coordination?
cerebrum |
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brainstem |
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cerebellum |
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medulla |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.
What is a major difference between the somatic and autonomic nervous systems?
one is inherited, the other is learned |
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one controls voluntary activity, one controls involuntary activity |
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each belongs to a different nervous system |
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one controls thinking, the other controls feeling |
Both are part of the peripheral nervous system. The somatic nervous system sends sensory information to the central nervous system and controls voluntary actions while the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
In the water cycle, infiltration is most closely related to:
oceans |
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water table |
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rivers |
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runoff |
The water then accumulates as runoff and eventually returns to bodies of water or is absorbed into the Earth (infiltration) and becomes part of the water table, an underground resevoir of fresh water.
Water coming to a boil on a stove, ice melting, and steam from a cup of coffee are all examples of which of the following?
radiation |
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reflection |
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convection |
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conduction |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
Which of the following is the formula for power?
\(P = {\vec{w} \over t}\) |
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\(P = w t\) |
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\(P = \vec{w}t\) |
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\(P = {w \over t}\) |
Power is the rate at which work is performed or work per unit time: \(P = {w \over t}\) and is measured in watts (W).