"Speeding Up, Slowing Down"

Things cannot move on their own. They need a push or a pull to start moving. Pushes and pulls are called _______________.

• motion

• gravity

• forces

• friction

A ___________ is a force that moves soemthing away from you.

• push

• pull

• friction

• gravity

Speed is how slow something moves.

• True

• False

___________ is how far one place is from another.

• Gravity

• Force

• Speed

• Distance

The bigger the push or pull, the greater the change in motion.

• True

• False

_________ is a force that makes things slow down or stop moving.

• Motion

• Friction

• Gravity

• Push

A slide creates a lot of friction.

• True

• False

A skateboard can move _________ on a smooth concrete than on a bumpy road.

• slower

• faster

The rougher the surface is, the more _________ it creates.

• force

• gravity

• friction

• push

To speed up you need to make less friction. To slow down, you need to create more friction.

• True

• False