11b phy.@newtons third law of motion

What is the relationship between the action and reaction forces?

• Action and reaction forces act in the same direction
• Action and reaction forces act in the opposite direction
• Action and reaction forces act in perpendicular directions
• Action and reaction forces act in random directions

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What law of motion does this picture represent?

• Newtons 1st law
• Newtons 4th law 
• Newtons 3rd law 
• Newtons 2nd law

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As the fuel in a rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.

• Law of Inertia

• Law of Acceleration

• Law of Action - Reaction

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Newton's Third Law is also known as the Law of _______

• Inertia

• Acceleration

• Action - Reaction

• Gravitation

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When the air is released from a balloon, the air moves in one direction, and the balloon moves in the opposite direction. Which law best explains the motion of the balloon?

• Newton's Law of Inertia
• Newton's Law of F=ma
• Newton's Law of Force Pairs
• Newton's Law of Biology

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If you apply MORE force to the ground what happens to the ground pushing on you?

• The force remains the same

• The force increases

• The force decreases

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A player catches a ball. The action force is the impact of the ball against the player's glove. The reaction force is...

• The force the glove exerts on the ball.

• The player's grip on the glove.

• The friction of the ground on the player's shoes.

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Newton's Third Law of Motion is also known as?

• The Law of Inertia

• The Law of Acceleration

• The Law of Interaction

• None of the Above

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Two blocks of weight 5 N and 2 N are attached to two ropes, X and Y.

The blocks hang vertically. The mass of the ropes is negligible. What is the tension in X and the tension in Y?

• 7N, 7N

• 7N, 2N

• 5N, 2N

• 5N, 3N

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You drive past a farm, and you see a cow pulling a plow to till a field. You have just learned about Newton’s third law, and you wonder how the cow is able to move forward if the plow is exerting an equal and opposite force on the cow. Which of the following explains the movement of the cow and plow?

• The force exerted by the cow on the plow is equal to the force that the cow exerts on the ground to move forward.

• The force exerted by the cow on the plow is larger than the force that the cow exerts on the ground to move forward.

• The force exerted by the cow on the plow is smaller than the force that the cow exerts on the ground to move forward.

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