Potential and Kinetic Energy 2023

Front

What is potential energy?

Back

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

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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.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

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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, its potential energy decreases while its kinetic energy increases.

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What is net force?

Back

Net force is the sum of all forces acting on an object, taking into account their directions.

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What happens when forces are balanced?

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When forces are balanced, the net force is zero, and the object does not accelerate.

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What happens when forces are unbalanced?

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When forces are unbalanced, the net force is not zero, and the object will accelerate in the direction of the greater force.

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What is radiant energy?

Back

Radiant energy is the energy of electromagnetic waves, including light energy.

Front

What is an example of potential energy?

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An example of potential energy is a stretched rubber band or a book on a shelf.

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What is an example of kinetic energy?

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An example of kinetic energy is a moving car or a running athlete.