Understanding Newton's Third Law of Motion

What is the key principle of Newton's Third Law of Motion?

• For every action, there is an equal and opposite reaction.

• An object in motion stays in motion unless acted upon by an external force.

• The acceleration of an object is directly proportional to the net force acting on it.

• Energy cannot be created or destroyed, only transformed.

In the canoe example, what happens when the man pushes the paddle against the water?

• The paddle exerts no force on the water.

• The water pushes back on the paddle with an equal force.

• The paddle moves backward.

• The water moves forward.

When a skateboarder jumps off a skateboard, what force interaction occurs?

• The skateboard moves left, and the skateboarder moves right.

• The skateboard remains stationary.

• The skateboarder moves left, and the skateboard moves right.

• Both the skateboard and skateboarder move in the same direction.

How does Newton's Third Law apply to a rocket launch?

• The rocket remains stationary as gases are expelled.

• The gases push downward, and the rocket moves upward.

• The rocket moves in the same direction as the expelled gases.

• The rocket moves downward as the gases push upward.

What happens when a car's wheels exert a force on the road?

• The wheels exert no force on the road.

• The road exerts a force in the same direction on the wheels.

• The road exerts an equal force in the opposite direction on the wheels.

• The car moves backward.