Max's Discovery of Force and Motion - ReadTheory

Max's Discovery of Force and Motion

Questions: 5

Grade: 3

Words: 146

Text

Text & Questions

Text, Questions & Answers

One sunny afternoon, Max was playing with his toy car. He noticed something strange - the car wouldn't move unless he pushed it, and it would eventually stop on its own. "Why does this happen?" wondered Max. His mom explained, "Max, when you push the toy car, you apply force to it which sets it in motion. But it doesn't go on forever due to friction. Friction is a force that slows things down." Later, Max was playing with his ball. He threw it up high and watched as it fell back down. "Why does the ball come back down and not go up, mom?" Max asked. His mom replied, "That's because of gravity, Max. Gravity is a force that pulls things down towards the earth." Max's day was filled with fun and learning about force and motion. Now, he understood why things moved and stopped!

Question 1

What is the force that slows things down?

A

Gravity

B

Push

C

Pull

D

Friction

Explanation. Friction is a force that slows things down. It does so by resisting the motion of objects.

E

Wind

Question 2

What happens when Max applies force to his toy car?

A

The car breaks

B

The car moves

Explanation. When Max applies force to his toy car, it sets the car in motion.

C

The car changes color

D

The car increases in size

E

The car disappears

Question 3

What is the force that pulls things down towards the earth?

A

Friction

B

Gravity

Explanation. Gravity is the force that pulls things down towards the earth.

C

Push

D

Pull

E

Twist

Question 4

Why does the toy car eventually stop on its own?

A

Because it runs out of fuel

B

Because it gets tired

C

Because of friction

Explanation. The toy car stops on its own due to the force of friction which slows things down.

D

Because it wants to stop

E

Because Max stops pushing it

Question 5

Why does the ball come back down and not go up when Max throws it?

A

Because of the wind

B

Because it's heavy

C

Because of gravity

Explanation. The ball comes back down instead of going up due to the force of gravity which pulls things down towards the earth.

D

Because it's round

E

Because Max wants it to come down

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