Review: Kinetic and Potential Energy

What is energy?

• A) The ability to do work
• B) A measure of mass
• C) A type of force
• D) A kind of matter

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According to the law of conservation of energy, energy can be:

• A) Created but not destroyed

• B) Destroyed but not created

• C) Transformed from one form to another

• D) Both A and B

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What is the SI unit for energy?

• kilogram
• meters
• Joule
• seconds

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What is potential energy?

• A) The energy of an object in motion.
• B) The energy stored in an object due to its position or configuration.
• C) The energy transferred when an object is heated.
• D) The energy produced by chemical reactions.

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Select the image that best describes kinetic energy.

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What type of potential energy does a battery represent?

• electrical potential energy
• elastic potential energy
• gravitational potential energy
• mechanical potential energy

In a roller coaster, how do potential energy and kinetic energy together represent mechanical energy?

• A) Potential energy is highest at the lowest point of the track, while kinetic energy is highest at the highest point.
• B) Potential energy is stored when the coaster is at the top of a hill, and kinetic energy is greatest when it is at the bottom, demonstrating the conservation of mechanical energy.
• C) Both potential energy and kinetic energy are constant throughout the ride, indicating that mechanical energy does not change.
• D) Kinetic energy converts to thermal energy at high speeds, while potential energy remains unchanged.

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Notice where the arrow is pointing in the image. Which statement best describes the potential energy at that point?

• A) The potential energy is at its lowest because the cars are moving fast.

• B) The potential energy is at its highest because of the cars' elevated position.

• C) The potential energy is constant regardless of the height of the cars.

• D) The potential energy is irrelevant at the high point since kinetic energy is dominant.

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In the diagram, where is the KE of the pendulum the highest?

• 1

• 2

• 3

• Both 1 and 3

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What is happening between point 1 and 2?

• KE is increasing and PE is decreasing
• KE is decreasing and PE is decreasing
• KE is increasing and PE is increasing
• KE and PE do not change between 1 and 2

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