Types of Mechanical Energy Review

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What is mechanical energy?

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Mechanical energy is the sum of potential energy and kinetic energy in an object, representing the energy associated with its motion and position.

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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, calculated as 1/2 mv², where m is mass and v is velocity.

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How does height affect potential energy?

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Potential energy increases with height; the higher an object is, the more potential energy it has due to gravitational force.

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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, conserving the total mechanical energy.

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What is gravitational potential energy?

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Gravitational potential energy is the potential energy an object possesses due to its height in a gravitational field, calculated as PE = mgh.

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What is the relationship between mass and potential energy?

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Increasing the mass of an object increases its gravitational potential energy, as potential energy is directly proportional to mass.

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At what point in a roller coaster is potential energy highest?

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Potential energy is highest at the top of the hill in a roller coaster ride.

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What is the principle of conservation of mechanical energy?

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The principle states that in a closed system, the total mechanical energy (potential + kinetic) remains constant if only conservative forces are acting.

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What is an example of potential energy?

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An example of potential energy is a book placed on a shelf; it has potential energy due to its height.

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