Forces and Motion

What is friction?

• A force that occurs when two objects touch

• A pull of an object

• A force that brings things down

• The push of an object

Friction slows down things that are moving

• Yes

• No

• Friction is not real

He is

• Pushing the cart

• Pulling the cart

He is

• Pulling

• Pushing

What makes the swing start or stop moving?

• Force

• Push

• Pull

• Air

The force that pulls things down toward the center of Earth is

• Force

• Gravity

• Friction

• Pull

Water in a fountain goes up and then comes back down. Describe the cause (reason) of this situation?

• gravity

• friction

• balanced force

An object in motion will stay in motion unless what happens?

•  a force acts on it

•  it becomes frozen

•  it decides to stop

•  it falls asleep

 Gravity is a natural force that _____ all objects towards the center of earth.

• pushes

• pulls

• rotates

• spins

The measure of how far an object has traveled?

• direction

• speed

• distance

• mass