ENERGY Pacer test review

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What is heat energy?

Back

Heat energy is the energy that comes from the temperature of matter. It is the energy that is transferred from one body to another due to a temperature difference.

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What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion. The faster an object moves, the more kinetic energy it has.

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What is the greatest source of kinetic energy in a moving vehicle?

Back

The greatest source of kinetic energy in a moving vehicle is its mass and speed. A heavier vehicle moving at a higher speed has more kinetic energy.

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Where is kinetic energy greatest in a tossed baseball?

Back

The kinetic energy of a tossed baseball is greatest at the point where it is moving the fastest, typically just before it hits the ground.

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What is geothermal energy?

Back

Geothermal energy is the heat that comes from the sub-surface of the earth. It is contained in the rocks and fluids beneath the earth's crust and can be found as far down to the hot molten rock, magma.

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What is nuclear fusion?

Back

Nuclear fusion is a process where two light atomic nuclei combine to form a heavier nucleus, releasing a large amount of energy. This process powers the sun.

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What is the difference between fission and fusion?

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Fission is the splitting of a heavy nucleus into smaller nuclei, while fusion is the combining of light nuclei to form a heavier nucleus.

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What type of energy is produced by moving water?

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Hydropower is the type of energy produced by moving water, which can be converted into electricity.

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What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves. It is a form of mechanical energy.

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What is electrical energy?

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Electrical energy is the energy caused by the movement of electrons. It is commonly used to power devices and appliances.