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 kinetic, potential, thermal, chemical, and electrical.

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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.

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What is potential energy?

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Potential energy is the stored energy of an object due to its position or state. For example, a ball held at a height 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 happens to energy in a pendulum?

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In a pendulum, kinetic energy is highest at the lowest point of the swing, while potential energy is highest at the highest points. The total energy remains constant.

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What is chemical energy?

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Chemical energy is the energy stored in the bonds of chemical compounds, like food or fuel, which can be released during a chemical reaction.

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What is sound energy?

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Sound energy is a form of energy that is produced by vibrating objects and travels through a medium (like air) as sound waves.

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How does electrical energy work in devices?

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Electrical energy is transformed into other forms of energy, such as light, sound, or heat, when used in devices like phones or light bulbs.

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What is an example of energy transformation?

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An example of energy transformation is when a battery (chemical energy) powers a flashlight, converting chemical energy into light energy.

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What is thermal energy?

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Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

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