Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like atoms and molecules. It is released or absorbed during a chemical reaction.

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What is thermal energy?

Back

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 mechanical energy?

Back

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

Front

What is sound energy?

Back

Sound energy is a form of energy that is associated with the vibration of matter. It travels in waves and requires a medium (like air, water, or solids) to move.

Front

What is a medium in the context of sound?

Back

A medium is a substance through which sound waves can travel. Examples include air, water, and solids. Outer space is NOT a medium for sound.

Front

What is the principle of energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as converting chemical energy in food to kinetic energy when we move.

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Can different forms of energy interact?

Back

Yes, different forms of energy can combine and work together, such as using thermal energy to create mechanical energy.

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What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons. It is commonly used to power devices and appliances.

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What is gravitational energy?

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Gravitational energy is the potential energy held by an object because of its height above the ground. The higher the object, the more gravitational energy it has.

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What is nuclear energy?

Back

Nuclear energy is the energy released during nuclear reactions, such as fission or fusion. It is a powerful form of energy used in nuclear power plants.