Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and chemical.

Front

What is kinetic energy?

Back

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

Front

What is potential energy?

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Potential energy is stored energy based on an object's position or state. For example, a raised object has gravitational potential energy.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance. It is related to temperature.

Front

How does temperature relate to molecular speed?

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Temperature is a measure of the average kinetic energy of the molecules in a substance. Higher temperatures mean faster-moving molecules.

Front

What happens to energy when ice melts?

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When ice melts, thermal energy is absorbed, causing the solid ice to change into liquid water.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground. It increases with height.

Front

What is the principle of conservation of energy?

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The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an example of energy transformation?

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An example of energy transformation is a hand warmer, which transforms chemical energy into thermal energy.

Front

What is the relationship between height and gravitational potential energy?

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The higher an object is, the more gravitational potential energy it has.