Energy, Einstein, and E=mc2

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What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and chemical.

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What does it mean to convert energy?

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To convert energy means to change it from one form to another, such as from potential energy to kinetic energy.

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What is kinetic energy?

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Kinetic energy is the energy of movement. It is the energy an object possesses due to its motion.

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What is potential energy?

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Potential energy is the energy stored in an object due to its position or state. For example, a rock at the top of a hill has 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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Who proposed the equation E=mc^2?

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Albert Einstein proposed the equation E=mc^2, which describes the equivalence of mass and energy.

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What does E=mc^2 mean?

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E=mc^2 means that energy (E) is equal to mass (m) multiplied by the speed of light (c) squared. It shows that mass can be converted into energy.

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What is the speed of light?

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The speed of light in a vacuum is approximately 299,792,458 meters per second (or about 300,000 kilometers per second).

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What is an example of energy conversion?

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An example of energy conversion is a battery converting chemical energy into electrical energy to power a device.

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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.