Conservation of Mechanical Energy

An object is speeding up when: (Choose All That Apply) (May have to choose more than 1 to be right)

• it is gaining kinetic energy.

• it is losing kinetic energy.

• it is gaining gravitational potential energy.

• it is losing gravitational potential energy.

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The sum of the kinetic and potential energy in a system is known as the system's _____________________ energy.

• mechanical

• chemical

• thermal

• combined

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This drawing illustrates which of the following?

• Conservation of Mechanical Energy

• Conservation of Mass

• Conservation of Momentum

• Conservation of Matter

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At which point in the picture must the cart have been moving the fastest?

• Point 1

• Point 2

• Point 3

• They would all be the same

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At which point in the picture must the cart have the most MECHANICAL energy?

• Point 1

• Point 2

• Point 3

• They would all be the same

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At which point(s) on the roller coaster is the gravitational potential energy at its maximum?

• A
• B
• C
• D

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At which point(s) on the roller coaster is the kinetic energy at its maximum?

• A
• B
• C
• D

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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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When my velocity triples, my kinetic energy increases by ______ times.

• 9
•  3 
• 1.5
• 4.5

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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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