8th Force and Motion Review

What is a force?

• gravity

• friction

• a push or a pull

• magic

A force is described by:

• color and smell

• taste and touch

• height and weight

• strength and direction

What unit do we measure force in?

• Meter

• Pound

• Newton

• Gram

The combination of all forces acting on an object is called:

• net force

• unbalanced forces

• friction

• centripetal force

What type force causes motion?

• unbalanced

• centripetal

• friction

• balanced

What two factors determine the strength of friction?

• distance and mass

• size and shape

• color and shape

• amount of force and surfaces involved

Which is NOT one of the types of friction?

• rolling

• flying

• static

• fluid

• sliding

A force that acts perpendicular to the motion is called:

• gravitational

• static

• unbalanced

• centripetal

What two factors keep satellites in orbit?

• gravity and projectile motion

• thrust and friction

• centripetal motion and friction

• gravity and mass

What does Newton's First Law state?

• acceleration is based on amount of force and mass of the object.

• for every action, there is an equal but opposite reaction.

• an object in motion will stay in motion, and an object at rest will stay at rest until an unbalanced force is added.

• All objects in the universe are attracted to each other.