Force and Motion

2. By changing the surface over which the car rolls from sandpaper to wax paper, you might be able to test the effect of what force?

• A. Magnetism

• B. Wind

• C. Wind

• D. Friction

What are the two kinds of forces?

• high and low

• loud and soft

• push and pull

• fast and slow

______________________ is a type of force that keeps objects in motion or slows them down.

• force

• gravity

• energy

• friction

A push or pull of an object is called __________________.

• force

• gravity

• energy

• friction

_____________________ is a force that tries to pull two objects together.

• force

• energy

• gravity

• friction

The ability to do work is called ___________________.

• force

• gravity

• energy

• friction

Which of these would take the most force to lift?

• one book

• a cotton ball

• a pencil

• a box of bricks

Which force is shown in the picture?

• push

• pull

• gravity

• friction

Which force is shown in the picture?

• push

• pull

• gravity

• friction

work is...

• energy from the sun
• a type of machine
• a force that moves an object
• a force that pulls you toward the earh