Newton's Laws of Motion

An object's motion won't change unless acted on by a ___.

• spell

• force

• motion

• command

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For every action there is ___ and opposite reaction.

• an equal

• a stronger

• a weaker

• an exciting

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____ force is needed to move objects of larger mass.

• less

• equal

• more

• light

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The force that pulls objects down towards the center of the Earth.

• Friction

• Gravity

• Air Resistance

• Wind Resistance

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A still object ____ have forces acting upon it.

• does

• can't

• doesn't

• will sometimes

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This force is caused by objects rubbing together.

• Gravity

• Air Resistance

• Friction

• Spinning

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A rocket launches because of _____.

• Its large mass

• an opposite reaction

• gravity

• air resistance

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Objects in motion tend to stay in motion, while objects at rest, tend to ___.

• roll

• start moving

• bounce

• stay at rest

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____ forces do not affect the movement of an object.

• Strong

• Weak

• Light

• Balanced

This force is caused by air and slows things down.

• Friction

• Air Resistance

• Gravity

• Pulling