Forces Quiz-4th grade

A ball falling back to the ground is an example of which force?

• magnetism

• gravity

• electricity

• attraction

Check ALL examples that show gravity at work.

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Students rolled a baseball down a ramp and measured the distance it traveled on three different surfaces.

What question could they be trying to answer?

• Why do baseballs stop after rolling down a ramp?

• How does friction change how far a baseball rolls?

• How does a baseball stop rolling on a flat surface?

• Which kind of ball rolls the furthest down a ramp?

When an apple falls on the ground, like in the picture, the force that is applied to it is________________.

• Magnetism

• Twist

• Compress

• Gravity

A man is pushing a ball up a hill. If the man stops pushing the ball and steps out of the way, what will most likely happen to the ball?

• It will stop on the hill.

• It will roll down the hill.

• It will roll to the side toward the man.

• It will fly.

What force will pull the car down the ramp?

• Friction

• Pull

• Gravity

• Magnetism

The rougher the surface, the faster an object will travel over the surface.

• True
• False

When most objects with smooth surfaces rub, there is less friction.

• True
• False

The force of ......... brings the man to the ground.

• friction

• gravity

• lift

• thrust

The force of gravity on earth is ..........on the moon

• less than

• more than

• equal