period 2 - Forces Review

Front

What is Newton's Third Law of Motion?

Back

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

Front

Define action-reaction pairs.

Back

Action-reaction pairs are forces that two objects exert on each other that are equal in magnitude and opposite in direction.

Front

What happens when you push against a wall?

Back

You exert a force on the wall, and the wall exerts an equal and opposite force back on you.

Front

What is the reaction force when a person sits on a chair?

Back

The chair exerts an upward force on the person.

Front

True or False: Forces in action-reaction pairs act on the same object.

Back

False, they act on different objects.

Front

What is an example of an action-reaction pair?

Back

When you jump off a small boat, you push the boat backward while the boat pushes you forward.

Front

What does it mean for forces to have the same magnitude?

Back

It means that the strength of the forces is equal.

Front

When a car accelerates, what can be said about the forces involved?

Back

The force exerted by the engine on the car is greater than the force exerted by the car on the engine.

Front

What is the force exerted by the ground on a sled when you push it?

Back

The ground exerts an equal and opposite force on the sled as you push it.

Front

What is an example of a situation where action and reaction forces are not visible?

Back

When a rocket launches, the action is the rocket pushing down on the ground, and the reaction is the ground pushing the rocket upward.