Newton's First Law - Review

Newton's 1st Law is also called the Law of ...

• Friction

• Inertia

• Unbalanced forces

• Newtons

An object in motion tends to stay in motion unless an ___ force acts on it.

• unbalanced

• balanced

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The tendency of an object to resist a change in motion is...

• inertia

• kinetic energy

• vector

• net force

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Because of inertia, a resting object will remain at ________.

• rest
• a constant speed
• school
• inertia 

Objects with greater _________ also have greater inertia.

• speed

• mass

• temperature

• friction

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How would the absence of friction affect a marble traveling on a long, straight path?

• The marble’s speed would decrease.

• The marble’s speed would increase.

• The marble would stop immediately. 

• The marble would remain at a constant speed.

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The amount of matter in an object is called...

• pressure

• weight

• mass

• force

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Objects with more mass are..

• harder to speed up or slow down

• easier to speed up or slow down

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A crash test dummy flying forward when the car crashes is an example of what?

• friction

• balanced forces

• gravity

• inertia

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If a soccer ball is resting on the ground, why does it move when it is kicked?

• Objects in motion stays in motion.

• A unbalanced force acted upon it.

• A balanced force acted upon it.

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