Energy

Front

What is energy?

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Energy is the ability to do work or cause change. It exists in various forms, such as thermal, electrical, mechanical, and light energy.

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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 an object.

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What is light energy?

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Light energy is a form of energy that is visible to the human eye. It is produced by the vibration of electrically charged particles.

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What is electrical energy?

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Electrical energy is the energy caused by the movement of electrons. It powers devices like lamps and computers.

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What is mechanical energy?

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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.

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What is an insulator?

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An insulator is a material that does not allow heat or electricity to pass through it easily. Examples include Styrofoam and rubber.

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What is a conductor?

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A conductor is a material that allows heat or electricity to flow through it easily. Examples include metals like copper and aluminum.

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What is an open circuit?

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An open circuit is a broken path in an electrical circuit, preventing electricity from flowing.

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What is a closed circuit?

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A closed circuit is a complete path in an electrical circuit that allows electricity to flow.

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What is a switch?

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A switch is a device that can open or close an electrical circuit, controlling the flow of electricity.