Energy Review!!!

This weight lifter accidentally put 25kg on the LEFT side of his barbell and 50kg on the RIGHT side of his barbell. Which side would have the MOST gravitational potential energy?

• His left side because it has less mass.

• His right side because it has less mass.

• His left side because it has more mass.

• His right side because it has more mass.

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The weight lifter evened out his weights. On his FIRST lift he lifted a total of 100kg. On his SECOND lift he lifted a total of 50kg. If he lifted them both to a height of 2 meters, which lift would hit the floor with the most energy when dropped from the 2 meter height?

• The FIRST lift, because less mas means more energy transferred.

• The FIRST lift because more mass means more energy transferred.

• The SECOND lift because less mass means more energy transferred.

• The SECOND lift because more mass means more energy transferred.

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A skate boarder was going back and forth from the top of a half pipe, down to the bottom and back up to the top of the other side. At which point would he have the MOST kinetic energy?

• At the top, when he began.

• At the top, where he turned around.

• Half-way down either side.

• At the bottom of the half pipe.

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VOCAB CHECK! What is a measure of energy--the ability of a body or system to do work or produce change?

• Joules

• Mass

• Newtons

• Power

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VOCAB CHECK! What is the energy of a particle or system of particles derived from position or condition rather than motion?

• Light energy

• Kinetic energy

• Sound energy

• Potential energy

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VOCAB CHECK! What is the energy that someone or something has by virtue of being in motion?

• Kinetic energy

• Potential energy

• Electrical energy

• Mechanical energy

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VOCAB CHECK! What is the energy that comes from the changes in the nucleus of an atom?

• Kinetic energy

• Potential energy

• Nuclear energy

• Light energy

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VOCAB CHECK! What kind of energy is carried in waves in the visible region of the electromagnetic spectrum?

• Sound energy

• Wind energy

• Chemical energy

• Light energy

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VOCAB CHECK! What is the form of energy produced by the vibration of an object?

• Sound energy

• Light energy

• Nuclear energy

• chemical energy

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When it comes to thermal energy, heat ALWAYS transfers from

• top to bottom.

• hot to cold.

• side to side.

• beginning to end.

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