Unit 4 Forces and Motion Review

Which is true about magnets?

• A magnet must touch an object to repel it.

• A magnet must touch an object to attract it.

• A magnet does not have to touch an object to attract it.

When the same poles of magnets are put together they_____

• attract

• repel

• do nothing

_____ a force that pulls objects toward the ground

• Friction

• Magnetism

• Gravity

Lilly kicks a ball with a hard force. What is true about how the ball moves.

• faster

• slower

• farther

• near

True or False: Magnets can make objects move without touching them

• True

• False

Is it harder to push a toy car on a smooth surface or a rough surface?

Which is an example of a change in position?

• standing still

• a pencil on a table

• walking out the door

True or False: Gravity is keeping us on the ground

• True

• False

Grant sits on a chair. Why doesn't he fall to the floor?

• there is no gravity on Gran tor the chair

• gravity is holding him up

• the chair is holding him up