Energy transformations

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What is energy transformation?

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Energy transformation is the process of changing energy from one form to another, such as converting chemical energy in food to mechanical energy when moving.

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What are the main types of energy?

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The main types of energy include kinetic energy, potential energy, thermal energy, chemical energy, electrical energy, and sound energy.

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What happens to energy when a student rubs their hands together?

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The energy transforms from chemical energy (from food) to mechanical energy (movement of hands) to thermal energy (heat generated).

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What is kinetic energy?

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Kinetic energy is the energy of an object in motion, which depends on its mass and 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, such as gravitational potential energy based on height.

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What factors affect gravitational potential energy?

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Gravitational potential energy depends on the height (position) of the object above the ground and its mass.

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At which point in a pendulum's swing is kinetic energy greatest?

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Kinetic energy is greatest at the lowest point of the swing, where the speed is highest.

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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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How is energy conserved in transformations?

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Energy is conserved in transformations; it cannot be created or destroyed, only changed from one form to another.

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What is an example of energy transformation in a light bulb?

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In a light bulb, electrical energy is transformed into light energy and thermal energy (heat).