Forces and Motion Quiz

The acceleration of an object is affected when the size of the ______ acting on it changes; acceleration is also affected by the ______ of the object.

The amount of friction depends on the _______ involved.

Forces that are equal in size and opposite in direction are called __________ forces.

Any push or pull is called a(n) __________.

Force is measured in units called __________.

A force that works against motion is __________.

Forces that are not equal in size and are not opposite in direction are called __________ forces.

More force is needed to move an object with a large __________.

A(n) __________ surface does not create much friction.

Frank kicks a soccer ball and it rolls on the grass before coming to a complete stop.  What made the soccer ball slow down?

• Sir Isaac Newton
• Friction
• Garfield