| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
Which of the following is the formula for power?
\(P = w t\) |
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\(P = {w \over t}\) |
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\(P = {\vec{w} \over t}\) |
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\(P = \vec{w}t\) |
Power is the rate at which work is performed or work per unit time: \(P = {w \over t}\) and is measured in watts (W).
Examples of secondary consumers include:
plankton |
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wolves |
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chickens |
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grasshoppers |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.
Which of these is not a type of fat?
polyunsaturated |
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cholesterol |
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monounsaturated |
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saturated |
Fats come in three types, saturated (meats, shellfish, eggs, milk), monounsaturated (olives, almonds, avocados), and polyunsaturated (vegetable oils).
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?
reflection |
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radiation |
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conduction |
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convection |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
These clouds grow upward and can develop into cumulonimbus or thunderstorm clouds.
cumulus clouds |
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nimbus clouds |
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stratus clouds |
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cirrus clouds |
Cumulus clouds are large, puffy, mid-altitude clouds with a flat base and a rounded top. These clouds grow upward and can develop into a cumulonimbus or thunderstorm cloud.