Potential and Kinetic Energy Review

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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 configuration, often related to its height above the ground.

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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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How is potential energy converted into kinetic energy?

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Potential energy is converted into kinetic energy when an object moves from a higher position to a lower position, such as when a roller coaster descends.

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What factors affect potential energy?

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Potential energy is affected by the object's mass and its height above a reference point.

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What is the formula for calculating gravitational potential energy?

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The formula for gravitational potential energy (PE) is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

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What happens to potential energy as an object falls?

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As an object falls, its potential energy decreases while its kinetic energy increases.

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In a roller coaster, where is potential energy the greatest?

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Potential energy is greatest at the highest points of the roller coaster.

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In a roller coaster, where is kinetic energy the greatest?

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Kinetic energy is greatest at the lowest points of the roller coaster.

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What is the relationship between potential and kinetic energy in a closed system?

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In a closed system, the total mechanical energy (potential + kinetic) remains constant, assuming no energy is lost to friction or air resistance.

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How does height affect potential energy?

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The higher an object is positioned, the greater its potential energy due to the increased height in the gravitational field.

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