Mechanical Energy

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What is mechanical energy?

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Mechanical energy is the sum of potential energy and kinetic energy in a system.

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What are the two main types of mechanical energy?

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The two main types of mechanical energy are kinetic energy and potential energy.

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What is kinetic energy?

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Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is 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, often related to height and mass.

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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 is the formula for calculating gravitational potential energy?

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The formula for gravitational potential energy 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 kinetic energy as an object speeds up?

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As an object speeds up, its kinetic energy increases because it is proportional to the square of its velocity.

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Can potential energy be converted to kinetic energy?

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Yes, potential energy can be converted to kinetic energy, such as when an object falls from a height.

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What is an example of potential energy in everyday life?

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An example of potential energy is a stretched rubber band or a book placed on a shelf.

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What is an example of kinetic energy in everyday life?

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An example of kinetic energy is a moving car or a flowing river.

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