Energy Review

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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?

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Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

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How are potential and kinetic energy related?

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Potential and kinetic energy can transform into one another. For example, when a ball is dropped, its potential energy decreases while its kinetic energy increases.

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What is energy transformation?

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

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What does the Law of Conservation of Energy state?

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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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Can energy disappear during transformation?

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No, energy cannot disappear. It can only change forms, according to the Law of Conservation of Energy.

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What is an example of energy transformation in everyday life?

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An example is when you plug in a toaster. Electrical energy is transformed into thermal energy to toast the bread.

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What is gravitational potential energy?

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Gravitational potential energy is the potential energy an object has due to its height above the ground. The higher the object, the more gravitational potential energy it has.

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What is mechanical energy?

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Mechanical energy is the sum of potential and kinetic energy in an object. It is the energy associated with the motion and position of an object.

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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 a substance.