Chapter 3: Force and Motion

1. Gravity exists between all objects in the universe.

• True

• False

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For every action there is an equal and opposite reaction.

• Newton's 1st law

• Newton's 2nd law

• Newton's 3rd law

• Newton's Law of Universal Gravitation

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Force is equal to mass times acceleration.

• Newton’s 1st Law

• Newton’s 2nd Law

• Newton’s 3rd Law

• Newton’s 3rd Law

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"An object at rest will remain at rest unless acted on by an outside force" is?

• Newton’s 1st Law

• Newton’s 2nd Law

• Newton’s 3rd Law

• Newton’s Law of Universal Gravitation

The force that keeps an object in orbit is?

• Centripetal force

• Centrifugal force

• Angular force

• Air resistance

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The friction you experience when you push an object and it doesn't move is?

• Static friction

• Sliding friction

• Rolling Friction

• Kinetic friction

What two things impact the amount of friction between two objects?

• Surface type and air resistance

• Surface type and speed

• Force and air resistance

• Surface type and force

Which of these does not affect terminal velocity?

• Speed

• Shape

• Mass

• Size

You drop a crumpled piece of paper and a flat piece of paper. The crumpled piece of paper hits the ground first, why?

• Crumpling the paper adds mass which makes it accelerate

• The flat paper has less weight, so gravity doesn't pull it as fast

• The crumpled paper has less air resistance

• The flat paper has less air resistance

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What is the weight of a ball on earth that has a mass of 4.5 kg?

• 44.1 kg

• 44.1 N

• 38.7 N

• 12.5 N

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