Newton's Laws of Motion

How many Law's of Motion are there?

• 1

• 8

• 3

• 5

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NGSS.HS-PS2-1

A force is defined as a

(a)  

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NGSS.MS-PS2-1

Newton's Second Law is expressed as

• F=m/a

• M=a/F

• F=ma

• A=F/m

What causes an object to slow down or speed up?

(a)  

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NGSS.MS-PS2-2

Which law explains why when you bump into something you fall back?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

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NGSS.MS-PS2-1

Newton's First Law of Inertia states that..

• an object in motion will stay in motion and an object at rest will stay at rest unless acted on by an unbalanced force.

• an object in motion will stay in motion and an object at rest will stay at rest unless acted on by a balanced force.

• an object in motion will stay at rest and an object at rest will stay in motion unless acted on by an unbalanced force.

• an object in motion will stay at rest and an object at rest will stay in motion unless acted on by a balanced force.

Which statement describes an object acted on by balanced forces?

• A truck driver applies the brakes to slow down his truck.

• A car is traveling at a constant speed around a bend.

• A bicycle speeds up as it is traveling down a hill.

• A train is stopped at a station waiting to pick up passengers.

A water rocket uses an amount of water and pressurized air to send a plastic rocket several feet into the air. As the water and air rush out the tail end of the rocket, the rocket shoots into the air. 

Which statement explains the rocket's motion?

• The force of gravity must be overcome to achieve lift.  

• The force of gravity of the rocket is greater than the water. 

• The inertia of the water and air must be overcome. 

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

A boy holds a box steadily in the air. Which picture correctly shows the forces applied to the box?

• 
• 
• 
• 

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NGSS.3-PS2-1

When you increase the force applied to an object what happens to its acceleration?

• It increases

• It decreases

• It stays the same

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NGSS.MS-PS2-2