Unit 8: Energy Test

A student on summer vacation is about to ride a roller coaster at a theme park. She knows that the roller coaster will start at the highest point of the ride. She conducted research to find the mass of the roller coaster and calculate what the final velocity of the roller coaster will be. Which of the following best demonstrates how the law of conservation of energy works in the function of a roller coaster?

• Gravitational potential energy is converted to kinetic energy on the uphill portions of the coaster.

• Total mechanical energy at the top of the hill is greater than at the bottom.

• All of the gravitational potential energy is completely converted into thermal energy.

• The energy of motion at the end of the ride is converted to thermal energy by the brakes.

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Arrange in order from least to greatest potential energy.

• A, B, C, D

• D, B, C, A

• B, C, D, A

• A, D, C, B

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Which of these is a form of Potential Energy that is dependent on the height of the object?

• Chemical Potential Energy

• Gravitational Potential Energy

• Elastic Potential Energy

• Kinetic Potential Energy

Batteries use the science of electrochemistry to produce energy. Electrons are produced by a chemical reaction that happens at one electrode, and then they flow over to the other electrode where they are used up.

What type of energy is stored inside of batteries?

• Gravitational potential energy

• Chemical potential energy

• Kinetic energy

• Electrical energy

Which of these is a form of Kinetic Energy?

• Thermal or Heat

• Chemical

• Gravitational

• Nuclear

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What type of energy is demonstrated by the bowling ball knocking down the pins?

• Kinetic Energy

• Nuclear Energy

• Radiant Energy

• Electrical Energy

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What happens to the kinetic energy and gravitational potential energy of a ball in free fall?

• Kinetic energy and gravitational potential energy both increase.

• Kinetic energy and gravitational potential energy both decrease.

• Kinetic energy increases and gravitational potential energy decreases.

• Kinetic energy decreases and gravitational potential energy increases.

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A student wants to place a ball on an inclined plane where it will have the greatest potential energy.

Where on the inclined plane will the student place the ball?

• Location A

• Location B

• Location C

• Location D

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What happens to the energy of a falling object?

• Kinetic energy and gravitational potential energy both increase.

• Kinetic energy and gravitational potential energy both decrease.

• Kinetic energy increases and gravitational potential energy decreases.

• Kinetic energy decreases and gravitational potential energy increases.

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Which form of energy is delivered by tiny charged particles called electrons?

• Kinetic Energy

• Gravitational Energy

• Nuclear Energy

• Electrical Energy

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