Work, Power, and Energy Review

What are two things required for work to be done?

• Force

• Distance

• Constant Speed

• Momentum

What is mechanical energy?

• It is what metal creates when heated.
• All potential and kinetic energy in a system.
• It is motion of all matter.
• Energy of momentum.

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What does the Law of Conservation of Energy state?

• Energy cannot be created or destroyed
• Nothing can exchange energy
• Energy will increase over time.
• Energy will decrease over time.

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Is energy always conserved?

• Always
• Often
• Never
• Sometimes

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Energy of motion is which type of energy?

• Potential
• Kinetic
• Sound
• Gravitational

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What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound

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Work is:

• A transfer of energy by a force to move and object
• Something you get paid for
• Something you take home
• Makes you sweat

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On a roller coaster, where is maximum potential energy?

• At the bottom of a big hill
• When going around a corner
• When going upside down
• At the top of a big hill

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The formula for work is:

• d = r x t
• p = m x v
• f = m x a
• w = d x f

Which statement is true?

• Oranges contain Elastic Energy

• Food contains Chemical Energy

• Phone on the table doesn't contain Gravitational Energy

• Radiator contains Nuclear Energy

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