Chapter 7 Science Test (Energy and Motion)

The ability to do work is ____.

• energy

• force

• motion

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This skier is an example of which kind of energy?

• kinetic energy

• potential energy

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This skier is an example of which kind of energy?

• kinetic energy

• potential energy

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A book falls off the table. As the book falls, what happens?

• Kinetic energy changes to potential energy as the book falls.

• Neither kinetic nor potential energy changes as the book falls.

• Potential energy changes to kinetic energy as the book falls.

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The wagon has potential energy because it is at the top of a hill. The underlined part of the sentence is the ____.

• cause

• effect

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The horse uses kinetic energy as a result of running through the pasture. The underlined part of the sentence is the ____.

• cause

• effect

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Kellen pushed a marble down the slope of the driveway. What is true about the marble?

• The applied force is greater than the force of friction.

• The force of friction is greater than the applied force.

• The force of gravity pushed the marble up the slope.

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A car and a train travel at the same rate of speed. Which one has more kinetic energy?

• The train’s weight gives it more kinetic energy.

• The car’s weight gives it more kinetic energy.

• The car’s speed gives it more kinetic energy.

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The shape of a rocket is an example of how energy, speed, and motion work together. Why do energy, speed, and motion work together?

• God designed the shape of the rocket so it could blast into space.

• God designed energy, speed, and motion to work together in an orderly fashion.

• God designed energy and motion to work together so the rocket would not need as much fuel.

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In order for a drone to fly, there needs to be an energy transfer of electrical energy changing into ____ energy.

• kinetic
• light

• sound

• nuclear

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