Kinetic and Potential Energy

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What is Kinetic Energy?

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Kinetic Energy is the energy an object possesses due to its motion. It depends on the mass of the object and the speed at which it is moving.

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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. It is often associated with the height of an object above the ground.

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How is Kinetic Energy calculated?

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Kinetic Energy (KE) is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

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How is Potential Energy calculated?

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Potential Energy (PE) is calculated using the formula: PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

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NGSS.MS-PS3-2

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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 directly proportional to the square of its velocity.

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What happens to Potential Energy as an object is lifted higher?

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As an object is lifted higher, its Potential Energy increases because it is directly proportional to height.

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NGSS.MS-PS3-2

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At what point does a diver have the greatest Kinetic Energy when diving?

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A diver has the greatest Kinetic Energy just before hitting the water, as they are at their highest speed.

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At what point does a diver have the least Potential Energy when diving?

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A diver has the least Potential Energy just before hitting the water, as they are at their lowest height.

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NGSS.MS-PS3-2

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Does increasing an object's mass affect its Kinetic Energy?

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Yes, increasing an object's mass will increase its Kinetic Energy if its speed remains constant.

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NGSS.MS-PS3-1

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Where would a baseball have the least amount of Kinetic Energy?

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A baseball would have the least amount of Kinetic Energy when it is at rest.