Forms of Energy

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What is mechanical energy?

Back

Mechanical energy is the energy that an object has due to its motion (kinetic energy) or its position (potential energy). An example is a ball rolling down a hill.

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What is kinetic energy?

Back

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

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What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a ball at the top of a hill has potential energy.

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What happens to energy when it changes form?

Back

Energy can change from one form to another, such as from potential energy to kinetic energy when an object falls.

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What is sound energy?

Back

Sound energy is the energy produced by vibrating sound waves. It travels through air, water, and solids.

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What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. The hotter an object, the more thermal energy it has.

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What is the law of conservation of energy?

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The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

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What is an example of energy causing motion?

Back

An example of energy causing motion is skating down a sidewalk.

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What is an example of energy not causing motion?

Back

Sitting at the top of a slide is an example of energy not causing motion.

Front

What happens to vibrations when a pitch changes from low to high?

Back

When a pitch changes from low to high, vibrations are happening faster.