Test - Newton's Laws of Motion

A push or pull that can change the motion of an object is a(n):

• force.

• collision.

• newton.

• lift.

What is the unit of measurement for force?

• gram

• liter

• newton

• meter

Newton’s 3rd law states that for every action, there is an ________ reaction.

• unequal and opposite

• equal and similar

• stronger and opposite

• equal and opposite

Forces always come in ___.

• waves

• pairs

• triplets

When you step on a roach, the roach applies an equal and opposite force on your foot.

• True

• False

When a heavy football player and a light one run into each other, who exerts more force at impact?

• The light one.

• The heavy one.

• Neither. Their forces are equal.

When gravity pulls a skydiver towards the Earth, the reaction force is...

• The skydiver pulling the Earth toward her.

• Air resistance.

• kinetic energy.

How is this an example of Newton’s Third law?

• Only the ball is using the head

• They are both exerting an equal force on each other

• Only the head is pushing the ball

When a person pushes the ground with their foot, the equal and opposite reaction force is:

• the ground pushing back on their foot.

• when they start to move forward.

According to Newton’s second law of motion, force is equal to mass times ______________________.

• inertia

• weight

• acceleration

• direction