What is the push or pull of an object?

• Motion

• Force

• Friction

• Gravity

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Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

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Which force changes motion?

• unbalanced force

• balanced force

• gravitational force

• frictional force

Where is potential energy the greatest?

• W

• X

• Y

• Z

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It takes more force to accelerate the heavier Iron Man because it has more mass. This best describes:

• Newton's first law, the law of inertia

• Newton's second law, the law of acceleration

• Newton's third law, the law of action-reaction

• The law of universal gravitation

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For every action, there is an equal and opposite reaction (a)   .

• Newton's 1st Law of Motion
• Newton's 2nd Law of Motion
• Newton's 3rd Law of Motion

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What does this picture best represent?

• Newton's 1st Law of Motion (Inertia)

• Newton's 2nd Law of Motion (F=ma)

• Newton's 3rd Law of Motion (Action/Reaction)

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What does this picture best represent?

• Newton's 1st Law of Motion (Inertia)

• Newton's 2nd Law of Motion (F=ma)

• Newton's 3rd Law of Motion (Action/Reaction)

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If an object is not moving, the forces on it are (a)   .

• unbalanced
• weak
• balanced
• Hulk Smash!

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Which Newton's law is represented by this picture?

• Newton's 2nd law

• Law of gravity

• Newton's 1st law

• Newton's 5th law

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