5.6a Forms of Energy

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What is energy?

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

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What is mechanical energy?

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Mechanical energy is the energy associated with the motion and position of an object. It can be kinetic (energy of motion) or potential (stored 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.

Front

What is electrical energy?

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

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What is sound energy?

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Sound energy is the energy produced by vibrating sound waves. It is a form of mechanical energy that can be heard.

Front

What is an example of a device that uses electrical energy?

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A television is an example of a device that uses electrical energy to function.

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What is an example of a device that produces mechanical energy?

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A blender is an example of a device that produces mechanical energy when it mixes or chops food.

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How does a toaster work?

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A toaster uses electrical energy to produce thermal energy, which toasts the bread.

Front

What type of energy does a guitar produce when strummed?

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A guitar produces sound energy when its strings are strummed.

Front

What is the relationship between mechanical energy and sound energy in musical instruments?

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Musical instruments convert mechanical energy (from playing) into sound energy (the music produced).