Lesson 2 Review

In your own words, why are head injuries dangerous?

Label what each of the components of the model system represents.

a

b

c

cerebrospinal fluid

skull

brain

In your own words, what happened to the brain in the jar when you move it side to side?

Jar A and Jar B ​ (a)   from each other.

• experience a force
• do not experience a force

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As a result of these forces, Jar A and Jar B ​ (a)   each other.

• accelerate away from
• accelerate toward

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Egg A and Egg B will ​ (a)   .

• continue moving until crashing into the jar lid
• stop moving and not hit the jar lid

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When the eggs crash into the lids, Jar A and Egg A ​ (a)   from each other.

Jar B and Egg B ​ (b)   from each other.

• experience a force
• do not experience a force
• also experience a force
• also do not experience a force

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If these forces are strong enough, the eggs ​ (a)   .

• will break
• will shake hands and leave
• will complain about the work

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Which of Newton's Law is being described?

A moving object will stays in motion with the same speed and direction unless acted on by a force. And an object at rest stays at rest until acted on by a force.

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

In your own words, what happens when these two bumper cars collide with each other?

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