Energy, Work, and Power

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass of the object and the speed at which it is moving.

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What is potential energy?

Back

Potential energy is stored energy that has the potential to do work. It is often associated with an object's position or state.

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Front

Where is kinetic energy maximum on a roller coaster?

Back

At the bottom of a big hill.

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Front

Where is potential energy maximum on a roller coaster?

Back

At the top of a big hill.

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What type of energy does a moving skateboard have?

Back

Kinetic energy.

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What type of energy does a flowerpot sitting on a windowsill have?

Back

Potential energy.

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Front

What is the formula for kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.

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What is the formula for potential energy?

Back

Potential energy (PE) = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

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Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases.

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NGSS.MS-PS3-5

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What is the relationship between work and energy?

Back

Work is done when energy is transferred from one system to another. Work is equal to the change in energy.

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