Physics Quiz on Forces and Motion

Uniform motion describes an object with constant _____________?

Rest is a special case of Uniform Motion where the _________ is zero.

On the surface of the Earth, what force always acts down?

When all the forces on an object are balanced, there is no ____ force.

If two Sumo wrestlers push against each other, one with 200N to the North and one with 150N to the South, what is the net force?

If two identical cars are moving at different speeds, do they have the same inertia? Yes/No

• Yes

• No

What type of motion is attached to a force – velocity, or acceleration?

• velocity

• acceleration

Inertia is the tendency of an object to change its motion. True/False?

• True

• False

A bicycle starts from rest and then accelerates to 10m/s. What is providing the force for this acceleration?

• A person

• Friction

• Gravity

• Pedals

For a fast-moving object like a car, what force acts opposite to its motion?

• resistance

• brakes

• air resistance

• gravity