Grade 8 Kinetic and Potential Energy

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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. Formula: KE = 1/2 mv².

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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.

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What is Gravitational Potential Energy?

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Gravitational Potential Energy is the energy an object has due to its height above the ground. Formula: PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

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What is Elastic Potential Energy?

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Elastic Potential Energy is the energy stored in elastic materials as the result of their stretching or compressing.

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What is the Law of Conservation of Energy?

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The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

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At which point in a pendulum's swing is kinetic energy highest?

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Kinetic energy is highest at the lowest point of the swing.

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Which type of energy does a moving car possess?

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A moving car possesses 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.

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What is an example of an object with gravitational potential energy?

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A book placed on a shelf has gravitational potential energy due to its height.

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How does compressing a spring affect its energy?

Back

Compressing a spring increases its elastic potential energy.