Newton's 3rd Law - Quiz

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

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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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When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

• False

• True

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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?

• 100 Newtons, same direction

• 100 Newtons, opposite direction

• 200 Newtons, opposite direction

• 200 Newtons, same direction

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The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?

• The rocket is protected from the heat of the exhaust.

• Burned fuel can be collected on the ground.

• As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.

• This allows the rocket to be steered properly.

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The illustration shows the forces in Newtons (N) acting on three different blocks. Which blocks will move under these conditions?

• Blocks 1 and 2

• Blocks 2 and 3

• Blocks 1, 2, and 3

• Blocks 1 and 3

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