Potential and Kinetic Energy

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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 has the potential to be converted into kinetic energy.

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What is Kinetic Energy?

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Kinetic energy is the energy of an object in motion. It depends on the mass of the object and its velocity.

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What is Thermal Energy?

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Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in an object.

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What is Friction?

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Friction is a force that opposes the motion of an object. It occurs when two surfaces rub against each other.

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How does friction produce heat?

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Friction converts kinetic energy into thermal energy, causing the surfaces to heat up.

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What is Chemical Energy?

Back

Chemical energy is the potential energy stored in the bonds of chemical compounds, which can be released during a chemical reaction.

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What are the two main forms of energy given off by the sun?

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The sun gives off thermal energy and radiant energy.

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What is the relationship between potential energy and height?

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

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What is an example of kinetic energy in everyday life?

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

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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.