Newton's First Law Review

When forces are balanced, the object

• Moves

• Doesn't Move

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When forces are unbalanced an object...

• Moves

• Doesn't Move

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Which are examples of inertia?

• A hockey puck sliding across the ice

• Ice skaters to glide on the ice in a straight line.

• Flying forward when your grown up slams on the brake in the car

• Milk swirling even after your down stirring

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What force is seen here?

• Push

• Pull

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What is the net force? What direction is the force in?

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NGSS.MS-PS2-2

What is the net force? What direction is the force in?

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NGSS.MS-PS2-1

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Newton's First Law is also known as the Law of ... ?

• Mass

• Inertia

• Newtons

• Friction

An object in motion will do what?

• Stay in motion until acted upon by a force.

• Stay at rest until acted upon by a force.

• Never move.

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NGSS.HS-PS2-1

Because of inertia, a moving object will keep ______ unless acted upon by an unbalanced force.

• At rest

• Moving

• In one spot

• Inertia

Why is the net force 0 in this image?

• The elephants are the same size.

• The elephants are pulling away from each other

• The elephants are each applying 200 N of force

• They are elephants

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