Carew -Agnew 6.7 C Force Pairs (Newton's 3rd Law)

Open Ended

How does Newton's Third Law of Motion help us understand the interactions between objects when forces are applied?

Open Ended

If the wall was hit by the car, then why did the car get damaged? (Think about the video)

Multiple Select

Which of the following are examples of action-reaction force pairs? Choose TWO.

• A rocket launching and exhaust gases pushing down

• A person sitting on a chair and the chair pushing up

• A car accelerating on a road

• A magnet attracting a piece of iron

Multiple Choice

Which of the following best describes 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 outside force.

• Force equals mass times acceleration.

• Energy cannot be created or destroyed.

Open Ended

Explain how Newton's Third Law applies when a soccer player kicks a ball. What are the action and reaction forces involved?

Multiple Choice

In the action-reaction pair of a foot kicking a ball, what does the reaction force act on?

• The ball

• The foot

• The ground

• The air

Multiple Choice

Newton's third law states that forces always come in ___

• pairs
• by itself

• together

• singles

Multiple Choice

According to Newton's Law of Action-Reaction Forces, what happens to the acceleration of two objects if the forces between them are equal but their masses are different?

• The object with more mass has greater acceleration

• The object with less mass has greater acceleration

• Both objects have the same acceleration

• Neither object accelerates

Multiple Choice

Which of the following best describes when action-reaction force pairs occur?

• They occur one after the other

• They occur simultaneously

• They occur only when objects are moving

• They occur only when forces are balanced

Open Ended

Which object has the greater acceleration? Why?

Open Ended

Describe what would happen if the forces pushing down on the apple and up on the apple were action-reaction forces. Would the apple move? Why or why not?

Multiple Choice

Which of the following statements about action-reaction force pairs is correct?

• They act on the same object

• They are always balanced

• They act on different objects

• They are never equal in magnitude

Open Ended

Explain why action-reaction force pairs are not considered balanced forces, using the example of a foot kicking a ball and an apple resting on a table.

Open Ended

What is the action-reaction force pair shown with the dog and the trampoline?

Multiple Choice

According to Newton's Law of Action-Reaction Forces, what is true about the forces between the dog and the trampoline?

• They are equal and opposite, acting on two different objects.

• They are equal and act on the same object.

• They are opposite but not equal.

• They act at different times.

Multiple Select

Which of the following are examples of action-reaction force pairs according to Newton's Third Law? Choose TWO.

• The air pushes on the balloon and the balloon pushes on the air.

• The paddle pushes on the water and the water pushes on the paddle.

• The balloon floats in the air.

• The water moves because of the paddle.

Open Ended

Q: What is the action-reaction force pair?