Unit 3, Lesson 1-2 Quiz

Ellie plugs a radio into an electrical outlet and turns it on. What change in energy taken place when she does this?

• Light energy changes into sound energy.

• Electrical energy changes into sound energy.

• Sound energy changes into electrical energy.

• Chemical energy changes into sound energy.

Fossil fuels are the most common source of energy. What else is true of fossil fuels?

• They are renewable.

• They form quickly underground.

• They can be made in a laboratory.

• They are burned to release energy.

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A rolling ball has kinetic energy. What does it mean for an object to have kinetic energy?

• The object is in motion.

• The object has stored energy.

• The object has used all of its energy.

• The object is passing on its energy.

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Objects can have potential energy because of their position. Which object has potential energy?

• book sitting on a table

• hands turning on a clock

• spinning wheels on a bike

• flag flapping in the wind

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NGSS.MS-PS3-2

Objects may have potential energy or kinetic energy. How do potential energy and kinetic energy compare to each other?

• Both describe objects at rest.

• Both describe objects in motion.

• Both are forms of mechanical energy.

• An increase in one leads to an increase in the other.

Ada drops a rubber ball from a height of 3 meters onto a hard surface. What happens to the kinetic energy of the ball when it hits the surface?

• The kinetic energy is lost.

• Most of the kinetic energy changes into heat.

• Most of the kinetic energy changes into potential energy.

• The kinetic energy is the same after the ball stops.

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Michael is using a spring on a dowel to send foam balls into the air. He keeps a supply of balls next to his equipment. If one of the balls falls off the table, what kind of energy change is taking place?

• Potential energy is changing into kinetic energy.

• Kinetic energy is changing into potential energy.

• Kinetic energy is changing into electrical energy.

• Potential energy is changing into magnetic energy.

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Daniel's science class has to choose an example of potential energy changing into kinetic energy. Which could they pick?

• sun warming a greenhouse

• pieces of iron stuck to a magnet

• battery in a drawer

• toy car rolling down a ramp

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_____________ energy is a form of potential energy that can be released by chemical change.

• Electrical

• model

• Chemical

• Potential

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_____________ energy is a form of kinetic energy that comes from electric current.

• Electrical

• model

• Chemical

• Potential