Newton's First Law and Second Law

Unbalanced forces change the motion of an object

• True

• False

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NGSS.MS-PS2-2

If a ball is in motion, how do balanced forces effect it?

• it will slow the ball down

• the ball will speed up

• the ball will continue to move at a constant speed & in the same direction

• the ball will stop

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NGSS.HS-PS2-1

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

• friction

• balanced forces

• gravity

• inertia

the sum of all the forces acting on an object

• balanced forces

• net force

• unbalanced forces

• friction

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NGSS.MS-PS2-2

 What is the unit called that measures force?

• weight

• meter

• Newton

• kilogram

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more

• it doesn't move

• you get more inertia

• it decelerates

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NGSS.MS-PS2-2

What is Newtons 2nd law of motion?

• Pancakes 

• Force= Mass multiplied by acceleration

• For every action there is a equal and opposite  re-action.

• Law of gravity 

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NGSS.MS-PS2-2

A 20 kg bike accelerates at 10 m/s2.  what was the force

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

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NGSS.MS-PS2-2

A ball is rolling on the floor and a force pushes it in the same direction, what will happen?

• The ball will go faster.

• The ball will slow down.

• The ball will stop. 

• The ball will fly in the air.

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NGSS.MS-PS2-2

A 50 kg bicycle accelerates at 2 m/s2. what was the force

• 150

• 125

• 100

• 200

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