Energy Forms and Transformations

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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 kinetic, potential, thermal, electrical, chemical, and nuclear.

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What is kinetic energy?

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Kinetic energy is the energy of an object in motion. It depends on the mass of the object and its velocity, calculated using the formula KE = 1/2 mv².

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What is potential energy?

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Potential energy is stored energy based on an object's position or state. For example, a roller coaster at the top of a hill has gravitational potential energy.

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What is the law of conservation of energy?

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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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What is electrical energy?

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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 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 sound energy?

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Sound energy is a form of energy produced by vibrating sound waves. It travels through air, water, and solids.

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What is light energy?

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Light energy is a form of electromagnetic radiation that is visible to the human eye. It is produced by sources like the sun and light bulbs.

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What is mechanical energy?

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

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How does energy transform when a TV is turned on?

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When a TV is turned on, electrical energy is transformed into light, sound, and heat energy.