Unit 3, Lesson 3-4 Quiz

Which is true about energy?

• It can be made.

• It can be destroyed.

• It can change form.

• It can be lost.

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NGSS.MS-PS3-2

NGSS.MS-PS3-4

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Cars, bicycles, animals, and people are all objects that can be in motion. Which statement about motion is correct?

• An object in motion is accelerating.

• Motion is the change in position of an object.

• Gravity and friction are responsible for all motion.

• An object in motion has speed, but it does not have velocity.

Ashley walked for 3 hours at a speed of 10 km/hr. How far did Ashley walk?

• 3 km

• 10 km

• 30 km

• 300 km

Beau is riding his bicycle. He pedals hard to gain speed. What kind of energy does the pedaling represent?

• chemical energy

• potential energy

• thermal energy

• kinetic energy

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NGSS.MS-PS3-5

A bicyclist is riding over a hill. When does she have the most potential energy?

• climbing up the hill

• at the top of the hill

• coasting down the hill

• at the bottom of the hill

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NGSS.MS-PS3-2

How much potential energy an object has is determined by which of the following?

• shape

• position

• mass

• volume

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NGSS.MS-PS3-2

What does friction do to a moving object?

• speeds it up

• slows it down

• nothing

• changes its direction

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NGSS.3-PS2-1

Two marbles are about to be rolled down a ramp. One marble is 1 meter above the floor and one is 2 meters above the floor. Which marble has greater potential energy?

• the marble at 2 m

• the marble at 1 m

• They both have the same potential energy.

• Neither marble has potential energy.

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NGSS.MS-PS3-2

As the marbles roll down the ramp, what happens to the potential energy?

• It is converted to chemical energy.

• It is converted to thermal energy.

• It is converted to kinetic energy.

• It stays potential energy.

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What is the formula for speed?

• potential energy divided by kinetic energy

• energy divided by distance

• time divided by distance

• distance divided by time

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NGSS.MS-PS3-1