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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