Newton's Third Law of Motion Quiz

When two ice skaters push off against each other, what happens according to Newton's third law of motion?

• Only the heavier skater moves backward.

• Only the lighter skater moves backward.

• Both skaters move backward.

• Neither skater moves.

If you push against a wall, what is the reaction pair?

• The wall collapsing

• The wall pushing back

• The wall moving forward

• Nothing; the wall doesn't push back

During a collision between a moving car and a parked car, how do the forces between the two cars compare?

• The moving car exerts a greater force.

• The parked car exerts a greater force.

• Both cars exert equal forces on each other.

• No force is exerted by either car.

What happens to the speed of a skateboard when a person standing on it throws a heavy ball forward?

• The skateboard moves forward.

• The skateboard stays still.

• The skateboard moves backward.

• The skateboard flips over.

When pushing a heavy object that doesn't move, what is the action-reaction pair involved?

• Your push and the object moving

• Your push and the ground moving

• Your push and the object pushing back

• Your push and you moving backward

In basketball, when the ball hits the ground and bounces back up, what illustrates Newton's third law of motion?

• The ball's speed before hitting the ground

• The force the ball exerts on the ground

• The force the ground exerts on the ball

• Both B and C

Why does a person feel a backward push when they fire a gun?

• Because the bullet moves forward with a force

• Because the gun is defective

• Because the air pushes the person backward

• Because the person is moving forward

What demonstrates an action-reaction pair when you jump off a small boat onto a dock?

• The boat moves in the opposite direction.

• The dock moves towards you.

• You move upward only.

• The boat stays still.

If two football players collide and come to a stop, what does this tell us about the forces involved?

• One player exerted a greater force.

• Both players exerted equal and opposite forces.

• No significant forces were involved.

• The forces were not equal, causing a stop.

What is the reaction force when you sit on a chair?

• The chair pushing up against you

• You pushing down on the ground

• The chair moving downwards

• The ground pushing up on the chair