Newton's Third Law

What is Newton's Third Law also known as?

• The Law of Acceleration

• The Law of Inertia

• The Law of Action-Reaction

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NGSS.MS-PS2-1

When an action force occurs, there is always a reaction force. Which of the following TWO terms describe the reaction force?

• stronger

• downward

• opposite

• weaker

• equal

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NGSS.MS-PS2-1

When a baseball player catches a ball, the ball pushes towards the glove; this is the 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 pulling back on the ball with an equal force.

• The reaction force is the glove pushing 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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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 a greater force than the ball hitting the bat

• The bat hitting the ball is a weaker force than the ball hitting the bat

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

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

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In the image shown here, one action force is Foot A kicking towards Ball B. What is the reaction force?

• Ball B pushes back towards Foot A

• Ball B pushes towards Foot C

• Foot C pushes towards Foot A

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What is the term that refers to how much motion an object has (mass in motion)?

• force

• mass

• momentum

• acceleration

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

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NGSS.MS-PS2-1

A _______ is a push or a pull that acts on an object as a result of its interaction with another object.

• action

• acceleration

• force

• momentum

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NGSS.HS-PS2-4

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 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

• Action: The force of the bird on the post

  Reaction: The force of the fence post on the bird

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

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

• The ice skates slow down, and the skater stops

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

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NGSS.MS-PS2-1