Newton's Laws of Motion

What is the upward force exerted on an object falling through the air?

• air resistance

• momentum

• weightlessness

• terminal velocity

Which of Newton's Laws is represented by the following statement: "to every action, there is an equal and opposite reaction"?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• The Law of Inertia

The relationship among mass, force and acceleration is explained by which of Newton's Laws?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• The Law of Inertia

What force causes a feather to fall through the air more slowly than a brick?

• gravity

• air resistance

• terminal velocity

• momentum

What will happen to a penny and a feather dropped from the same height in the absence of air?

• They will fall at different rates.

• They will not have momentum.

• They will float

• They will fall at the same rate.

When you walk, your foot pushes down on the ground. What is the response of the ground?

• It does nothing.

• It pushes with equal force on your foot

• It holds your foot

• It pushes with more force against your foot.

Which formula is used to summarize Newton's 2nd Law?

• F = m v

• V = I R

• E = mc²

• F = m a

What property of an object determines its inertia?

• velocity

• acceleration

• mass

• force

Which surface would create the most friction?

• water

• oil

• carpet

• ice

A book exerts a force of 10 N on a table top. How much force does the table top exert on the book?

• 30 N

• 0 N

• 10 N

• 20 N