STEMSCOPES - Newton's Third Law

What is Newton's Third Law also known as?

• The Law of Action-Reaction

• The Law of Acceleration

• The Law of Inertia

• All of the above

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When a baseball player catches a ball, the ball pushes towards the glove; this is an action force. What is the reaction force?

• The reaction force is the glove pushing back on the ball with a stronger force.

• The reaction force is the glove pushing back on the ball with an equal force.

• The reaction force is the glove pulling back on the ball with an equal force.

• The reaction force is the ball pushing away from the glove with an equal force.

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NGSS.MS-PS2-1

When a baseball bat hits a baseball, how does the force of the baseball hitting the bat compare to the force of the bat hitting the baseball?

• The bat hitting the ball is the only force in this situation

• The bat hitting the ball is a greater force than the ball hitting the bat.

• The bat hitting the ball is weaker than the the ball hitting the bat.

• The bat hitting the ball is equal to the force of the ball hitting the bat.

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NGSS.MS-PS2-1

Newton's Third Law states that for every action, there is an equal and opposite ____

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A photograph of a bird perched on a fence post is shown.

Which description best identifies the action-reaction pair between the bird and the fence post?

• Action: The force of the bird on the post.

  Reaction: The force of the fence post on the bird.

• Action: The force of the bird on the wires.

  Reaction: The force of the wires on the fence post.

• Action: The force of the wires on the fence post.

  Reaction: The force of the fence post on the bird.

• Action: The force of the fence post on the bird.

  Reaction: The force of the bird on the wires.

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NGSS.MS-PS2-1

An ice skater pushes off a wall and glides backwards for a few meters and then stops.

Which statement best describes an action-reaction force pair in this statement?

• The skaters exerts a force on the wall, and blade exerts a force on the ice.

• The wall pushes on the skater as the skater pushes on the wall.

• The ice skates sloes down, and the skater stops.

• The friction of the ice decreases as the blade of the skate moves on the ice.

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NGSS.MS-PS2-1

A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward.

Which statement best describes the backward motion of the boat as the person steps forward?

• Eery mass exerts a force on every other mass.

• Friction opposes the motion of the object.

• As object as rest tends to stay at rest.

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

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A baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat?

• 200 Newtons, same direction

• 100 Newtons, opposite direction

• 200 Newtons, opposite direction

• 100 Newtons, same direction

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NGSS.MS-PS2-1

A semi truck and a Volkswagen (small car) traveling at the same speed have a head on collision. Which statement is correct?

• The impact force is less on the semi truck.

• The impact force is greater on the semi truck.

• The impact force is equal for both.

• The impact force is greater on the Volkswagen.

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NGSS.MS-PS2-2

The rocket engines ignite and push the gases downward, what is the movement of the rocket?

• mass of the rocket decreases

• the gases cause a reduction in air resistance

• the rocket moves downward

• the rocket moves upward

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