Kinetic&Potential Energy

Front

What is Kinetic Energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and the square of its velocity.

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What is Potential Energy?

Back

Potential energy is the stored energy in an object due to its position or state. It can be gravitational, elastic, or chemical energy.

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How is Kinetic Energy calculated?

Back

Kinetic energy (KE) is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

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What happens to Kinetic Energy when an object's speed doubles?

Back

If an object's speed doubles, its kinetic energy increases by a factor of four, since KE is proportional to the square of the velocity.

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What is the relationship between mass and Kinetic Energy?

Back

Kinetic energy is directly proportional to the mass of the object; as mass increases, kinetic energy increases if velocity remains constant.

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What is an example of Potential Energy?

Back

A rock held at the top of a hill has gravitational potential energy due to its height above the ground.

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What is the difference between Kinetic and Potential Energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on position or condition.

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What is Mechanical Energy?

Back

Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work.

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How does height affect Potential Energy?

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Potential energy increases with height; the higher an object is, the more gravitational potential energy it has.

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What is an example of Kinetic Energy in everyday life?

Back

A moving car, a flowing river, or a person running are all examples of kinetic energy.