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 sound, light, thermal, and electrical.

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What is sound energy?

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Sound energy is produced when objects vibrate, creating waves that travel through air, water, or solids. Example: playing an instrument.

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What is thermal energy?

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Thermal energy is the energy that comes from heat. It is produced by the movement of tiny particles in matter. Examples include a fireplace, sunlight, and a campfire.

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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 sources like the sun and light bulbs. Example: a flashlight.

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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 computers, TVs, and blenders.

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What is an example of energy transformation?

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Energy transformation is when energy changes from one form to another. Example: electrical energy transforming into light energy in a light bulb.

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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 of motion and position.

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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. Example: a book on a shelf has potential energy due to its height.

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What is kinetic energy?

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Kinetic energy is the energy of motion. The faster an object moves, the more kinetic energy it has.

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What is an example of a renewable energy source?

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Renewable energy sources are those that can be replenished naturally. Example: solar energy from the sun.