Question 1

Which of the following pairs of forces occur in a physical system due to Newton's third law?

Accepted Answer

Action and reaction forces

Answer

Gravitational and electromagnetic forces

Answer

Centripetal and centrifugal forces

Answer

Frictional and tension forces

Question 2

What is an example of a pair of forces that occur in a physical system due to Newton’s third law?

Accepted Answer

When you push against a wall, the wall pushes back against you.

Answer

Friction between two surfaces.

Answer

A person swimming in water.

Answer

Gravity pulling an object downwards.

Answer

Air resistance slowing down a moving object.

Question 3

What is the relationship between the magnitude of the action force and the magnitude of the reaction force in Newton’s third law?

Accepted Answer

They are equal in magnitude.

Answer

The action force is smaller than the reaction force.

Answer

The action force is greater than the reaction force.

Answer

The relationship varies depending on the situation.

Answer

The action force and the reaction force have no relationship.

Question 4

When a person jumps off a diving board, what is an example of a pair of forces that occur in a physical system due to Newton’s third law?

Accepted Answer

The person exerts a downward force on the diving board, and the diving board exerts an upward force on the person.

Answer

The person exerts a downward force on the diving board, and the diving board exerts a downward force on the person.

Answer

The person exerts an upward force on the diving board, and the diving board exerts a downward force on the person.

Answer

The person exerts a forward force on the diving board, and the diving board exerts a backward force on the person.

Answer

The person exerts a downward force on the diving board, and the diving board exerts a forward force on the person.

Question 5

When a rocket is launched into space, what is an example of a pair of forces that occur in a physical system due to Newton’s third law?

Accepted Answer

The rocket exerts a backward force on the expelled gases, and the expelled gases exert a forward force on the rocket.

Answer

The rocket exerts a forward force on the expelled gases, and the expelled gases exert a backward force on the rocket.

Answer

The rocket exerts an upward force on the expelled gases, and the expelled gases exert a downward force on the rocket.

Answer

The rocket exerts a downward force on the expelled gases, and the expelled gases exert an upward force on the rocket.

Answer

The rocket exerts a forward force on the expelled gases, and the expelled gases exert a forward force on the rocket.

Question 6

When a person rows a boat in the water, what is an example of a pair of forces that occur in a physical system due to Newton’s third law?

Accepted Answer

The person exerts a backward force on the water with the oar, and the water exerts a forward force on the boat.

Answer

The person exerts a downward force on the water with the oar, and the water exerts an upward force on the boat.

Answer

The person exerts a forward force on the water with the oar, and the water exerts a forward force on the person.

Answer

The person exerts an upward force on the water with the oar, and the water exerts a downward force on the boat.

Answer

The person exerts a forward force on the water with the oar, and the water exerts a backward force on the person.

Question 7

When a ball is thrown against a wall, what is an example of a pair of forces that occur in a physical system due to Newton’s third law?

Accepted Answer

The ball exerts a forward force on the wall, and the wall exerts a backward force on the ball.

Answer

The ball exerts a backward force on the wall, and the wall exerts a forward force on the ball.

Answer

The ball exerts a downward force on the wall, and the wall exerts an upward force on the ball.

Answer

The ball exerts a downward force on the wall, and the wall exerts a downward force on the ball.

Answer

The ball exerts an upward force on the wall, and the wall exerts a downward force on the ball.

Question 8

When a car accelerates forward on a flat road, what is an example of a pair of forces that occur in a physical system due to Newton’s third law?

Accepted Answer

The car exerts a backward force on the road, and the road exerts a forward force on the car.

Answer

The car exerts a forward force on the road, and the road exerts a forward force on the car.

Answer

The car exerts a forward force on the road, and the road exerts a backward force on the car.

Answer

The car exerts an upward force on the road, and the road exerts a downward force on the car.

Answer

The car exerts a downward force on the road, and the road exerts an upward force on the car.

Question 9

What is an example of a pair of forces that occur in a physical system due to Newton’s third law when a person swims in water?

Accepted Answer

The person pushes against the water with their arms and legs, and the water pushes back, propelling the person forward.

Answer

The person pushes against the water with their arms and legs, and the water pulls them backward.

Answer

The person exerts a downward force on the water, and the water exerts an upward force on the person.

Answer

The person exerts an upward force on the water, and the water exerts a downward force on the person.

Answer

The person pulls the water towards them, and the water pushes them forward.

Question 10

According to Newton's third law of motion, what is an action-reaction pair of forces?

Accepted Answer

A pair of forces having equal magnitudes but opposite directions

Answer

The force exerted by an object and the force an object exerts in return

Answer

A force acting on an object and the resulting acceleration of the object

Answer

The gravity and normal force exerted by an object on a surface

Question 11

When a person pushes a wall with a certain force, what is the reaction force exerted by the wall?

Accepted Answer

An equal and opposite force

Answer

A force in the same direction as the person's push

Answer

A force greater than the person's push

Answer

No reaction force

Question 12

When a skateboarder pushes against the ground, what is the corresponding action-reaction pair of forces?

Accepted Answer

The skateboard pushing against the ground and the ground pushing back on the skateboard

Answer

Friction between the skateboard wheels and the ground

Answer

The skateboarder's muscles contracting and the skateboard moving forward

Answer

Gravity pulling the skateboard downwards and the skateboard pushing against the ground

Answer

Air resistance pushing against the skateboard

Question 13

When a person pulls a rope with a certain force, what is the reaction force exerted by the rope?

Accepted Answer

An equal and opposite force

Answer

No reaction force

Answer

A force in the same direction as the person's pull

Answer

A force greater than the person's pull

Question 14

When a baseball is hit with a bat, what is the action-reaction pair of forces involved?

Accepted Answer

The bat pushing forward on the ball and the ball pushing backward on the bat

Answer

The pitcher throwing the ball and the ball accelerating in flight

Answer

The bat hitting the ball and the ball bouncing off the bat

Answer

The gravitational force acting on the ball and the ball being propelled forward

Answer

The friction between the ball and the air

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