Harnessing Human Energy Unit Assessment Nov 2024

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What is kinetic energy?

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

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Provide an example of kinetic energy.

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A tennis ball rolling across the court is an example of kinetic energy.

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What type of energy does a skier have at the top of a mountain?

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A skier at the top of a mountain has potential energy.

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What happens to energy when it changes types?

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Energy converts when it changes types; for example, kinetic energy can change to potential energy.

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What type of energy does a ball have when rolling down a hill?

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A ball rolling down a hill has kinetic energy.

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What is potential energy?

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Potential energy is the stored energy in an object due to its position or state.

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How can kinetic energy be converted to other forms of energy?

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Kinetic energy can be converted to potential energy, light energy, thermal energy, etc.

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What is the formula for calculating kinetic energy?

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The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

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What factors affect the amount of kinetic energy an object has?

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The amount of kinetic energy an object has depends on its mass and velocity.

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Can potential energy be converted back to kinetic energy?

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Yes, potential energy can be converted back to kinetic energy, such as when a skier descends a slope.

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