A push or pull of an object is called __________________.

• force

• gravity

• energy

• friction

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

• 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

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. Water

• D. Friction

5. An experiment is conducted to measure the amount of force required to push a square cardboard box from one side of the room to the other side. What variable is likely to lessen the force required?

• A. Adding several heavy weights to the box

• B. Tipping the box onto its side

• C. Adding another box on top

• D. Placing the box onto a wheeled cart

The change in a objects position is________.

• Force
• Motion
• Reaction
• movement

When a car drives by, we know it is in motion because we use a ______________.

• ruler
• car
• reference point
• object

Who discovered how to compute gravity?

• Isaac Newton
• Albert Einstein
• Benjamin Franklin
• Aaron Abel

It is the resistance created by any two objects when sliding against each other.

• Sliding Friction

• Rolling Friction

• Fluid Friction

• Static Friction