energy transformation

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as converting potential energy into kinetic energy.

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What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is 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, such as gravitational potential energy.

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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.

Front

What happens to potential energy when an object falls?

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As an object falls, its potential energy decreases while its kinetic energy increases, demonstrating energy transformation.

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What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

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What is the relationship between kinetic energy and speed?

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Kinetic energy increases with the square of the speed; if speed doubles, kinetic energy increases by a factor of four.

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What is an example of energy transformation in a roller coaster?

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In a roller coaster, potential energy is highest at the top of a hill and transforms into kinetic energy as the coaster descends.

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What type of energy transfer occurs when a ball is thrown?

Back

When a ball is thrown, energy transforms from chemical energy (in the muscles) to kinetic energy (of the moving ball).

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What is mechanical energy?

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Mechanical energy is the sum of kinetic and potential energy in a system, representing the total energy of motion and position.