Motion Review

Which force opposes motion between two surfaces?

• Friction
• Motion
• Gravity

Which force attracts any two objects with mass towards each other?

• Gravity
• Friction
• Motion

_________ is a frictional force that air exerts on a moving object.

• Acceleration
• Motion
• Air resistance

If the sum of all the forces acting on a moving object is zero, the object will...

• slow down and stop
• change the direction
• continue moving with constant speed

Force that opposes the motion of an object at rest.

• rolling friction
• static friction
• fluid friction

How do we figure out speed?

• speed / distance
• speed / time
• distance / time
• time / distance

A push or a pull is an example of ....

• mass
• force
• speed

The amount of matter an object has is its.....

• Mass
• Speed
• Force

There is least amount of friction on which of these surfaces?

• dirt
• carpet
• ice
• sand

The type of friction that helps a parachute slowly float to Earth is...

• Air resistance
• Gravity
• Inertia