Force and Motion Test Review

What do we call forces that are equal in size but opposite in direction?

• Friction

• Unbalanced forces

• Balanced forces

• Gravity

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Why does car three travel the longest distance in Suri's experiment?

• It is the lightest car.

• It has the most magnets.

• It has the least friction.

• It is the heaviest car.

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What happens to an object in space if no forces act on it?

• It keeps moving in a straight line.

• It stops moving.

• It changes direction.

• It speeds up.

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Why was less force needed to move the weight on the wet surface?

• The weight was lighter.

• The surface was smoother.

• Friction was reduced.

• The weight was heavier.

What must a crane work against to lift a heavy box?

• Wind

• Inertia

• Gravity

• Friction

Tags

NGSS.MS-PS2-2

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