Newton's First Law and Second Law

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

What is the net force in this image?

• 50 N

• 200 N

• 1.7 N

• 125 N

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

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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NGSS.MS-PS2-1

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

• Mass

• Inertia

• Newtons

• Friction

What does it mean when we say a force is "unbalanced" in the context of Newton's First Law of Motion?

• The force does not change the object's direction of motion.

• The force causes the object to move at a constant velocity.

• The force causes a change in the object's state of motion.

• The force is equal in magnitude and opposite in direction to another force acting on the object.

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NGSS.MS-PS2-2

If you push a shopping cart with a certain force and it accelerates at 2 m/s², what would be the cart's acceleration if you push it with double the force, assuming the mass remains constant?

• 1 m/s²

• 2 m/s²

• 4 m/s²

• 8 m/s²

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DOK Level 2: Skill/Concept

Newton's Second Law states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. Which formula represents this law?

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DOK Level 1: Recall

The formula that we use in Newton's Second law is ... ?

• F = A/M

• F = M + A

• F = MA

• S = DV

The tendency of an object to resist change in it's motion is?

• Vector

• Net force

• Energy

• Inertia

Objects with greater _____ also have more inertia.

• Speed

• Temperature

• Mass

• Friction

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NGSS.MS-PS2-2

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