Chapter 5 Review

What is the net force?

• 3 N

• 3 N, right

• 17 N, right

• 3 N, left

What is the unit to MEASURE force?

• Kilogram

• Meter

• Pounds

• Newton

A ____________ is a push or a pull on an object.

• friction

• force

• magnet

• gravity

Balanced or unbalanced?

• balanced
• unbalanced

What force holds the planets in motion around the sun?

• Magnetic
• Electrical
• Gravitational
• Air Resistance

A type of friction that occurs when air pushes against a moving object causing it to decelerate.

• surface area
• air resistance
• velocity
• gravity 

Rougher surfaces have ...

• greater friction
• less friction
• the same level of friction

What is rolling friction?

• friction between two surfaces that aren't moving relatively to each other

• friction between a rolling object and the surface that it is rolling on

• friction where an object rubs against another surface

• friction of something going through any type of liquid or air

The weight of an object varies with the:

• pull of gravity

• dimensions of the object

• volume of the object

A boat going through the surface of a lake is an example of which type of friction?

• rolling

• emotional

• sliding

• fluid