Quarterly B: Potential and Kinetic 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 speed at which it is moving.

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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 is often associated with the height of an object above the ground.

Front

How is kinetic energy calculated?

Back

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

Front

How is potential energy calculated?

Back

Potential energy (PE) is calculated using the formula: PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height above the ground.

Front

What happens to potential energy as an object falls?

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As an object falls, its potential energy decreases while its kinetic energy increases, demonstrating the conversion of energy.

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What is an example of kinetic energy in everyday life?

Back

A moving car, a running dog, or a rolling ball are all examples of kinetic energy.

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What is an example of potential energy in everyday life?

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A book on a shelf, water stored in a dam, or a drawn bow are all examples of potential energy.

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What is the relationship between potential and kinetic energy?

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Potential energy can be converted into kinetic energy and vice versa. For example, when a roller coaster descends, potential energy is converted into kinetic energy.

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At what point does an object have maximum potential energy?

Back

An object has maximum potential energy at its highest point, such as the top of a hill or a roller coaster.

Front

At what point does an object have maximum kinetic energy?

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An object has maximum kinetic energy at its lowest point, such as the bottom of a hill or the fastest point in a roller coaster.