Forces and Interactions

Which two words best describe a force?

• push and pull
• inside and outside
• fast and slow

 ______ is the amount of matter an object is made of.

• mass
• gravity
• speed

Which force is the rubbing of one surface against another and causes a moving object to slow down?

• gravity
• mass
• friction

The measure of the pull of gravity on an object is called ____.

• friction
• motion
• weight

An object that is not moving has NO forces acting upon it.

• true

• false

Which force is acting upon an object at rest? (Example: sitting in a chair)

• gravity
• speed
• motion

Which of these cars travels a shorter distance?

• A small car given a strong push with a lot of force.
• A small car given a gentle push with less force.
• A large car given a strong push with a lot of force.

Which of these cars travels a longer distance?

• A small car given a strong push with a lot of force.
• A small car given a gentle push with less force.
• A large car given a strong push with a lot of force.

A boy is holding a ball. What force will start the ball rolling across a table?

• push

• pull

• gravity

When a ball rolls off the table, the force of _________________ pulls it to the floor.

• motion

• friction

• gravity