Force

A force can:

• make an object move

• slow an object down

• make a moving object stop moving

• all of the above

An object resting on the ground can move without a force.

• True

• False

When you push or pull something, you are creating:

• a weight

• a force

• a speed

• a surface

If you want a surface to have less friction, make it:

• wider

• smoother

• rougher

• thinner

What is friction?

• a force that slows an object

• a force that makes an object start moving

• a force that speeds up an object

• a force that can move very heavy objects

Which of the following would it take the most force to move?

• 3 pound ball

• 15 pound ball

• 5 pound ball

• 25 pound ball

Imagine you kick 4 balls with the same amount of force. Which goes farthest?

• 3 pound ball

• 15 pound ball

• 5 pound ball

• 25 pound ball

Which is easiest to move?

• 5 pound ball on grass

• 5 pound ball on ice

• 10 pound ball on grass

• 10 pound ball on ice

Which requires force to move?

• book

• elephant

• rock

• all of the above

Which person is least affected by friction?

• a person trying to slide a box across grass

• a person trying to slide a box across ice

• a person trying to slide a box across sand

• a person trying to slide a box across concrete