Newton's Laws of Motion Concepts

What is the unit of force?

• Kg

• N

• m/s

• m/s/s

Draw a force diagram for the following scenario:

Ball is being thrown upward

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Force is a ​ (a)   or ​ (b)   on an object.

• simple

• up

• in

• push
• pull
• complex

• down

• out

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What is the magnitude and direction of the net force on this object?

• 12N, Right

• 12N, Left

• 4N, Left

• 4N, Right

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What is the magnitude and direction of the net force on this object?

• 9N, Right

• 9N, Left

• 3N, Right

• 3N, Left

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Objects in motion will remain in motion at a constant velocity until acted on by another force.  Objects at rest will stay at rest until acted on by another force. (Law of Inertia)

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• All of These

Which (unlabeled) force diagram shows an object that could be moving at constant speed?

• A

• B

• C

• D

• None of them

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Which of the following best describes Newton's 3rd law of motion?

• Force equals mass times acceleration.

• An object at rest stays at rest unless acted upon by a force.

• For every action, there is an equal and opposite reaction.

• Objects fall at the same rate regardless of mass.

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If a 5 kg object is pushed with a force of 20 N, what is its acceleration?

• 15 m/s²

• 5 m/s²

• 4 m/s²

• 25 m/s²

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Which of the following best describes Newton's 2nd Law?

• Objects at rest stay at rest

• Net force equals mass times acceleration

• Energy cannot be created or destroyed

• For every action, there is an equal and opposite reaction

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