Newton's laws quiz

An object and rest will stay at rest and an object in motion will stay in straight line motion unless acted on by a force, is which one of Newton's Laws of Motion?

• 4th Law of Motion
• 1st Law of Motion
• 3rd Law of Motion
• 2nd Law of Motion

Which law explains when a magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Law 1

• Law 2

• Law 3

A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

• For every action there is an equal and opposite reaction.
• Every mass exerts a force on every other mass.
• An object at rest tends to stay at rest.
• Friction opposes the motion of an object.

Tags

NGSS.MS-PS2-1

 What is the unit for force?

•   $\frac{m}{s^2}$  

• m/s

• Newton

• Kilogram

Which law explains why when you put a book on a table the table pushes on the book

• 3rd law
• 4th law
• 1st law
• 2nd law

Tags

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Why is the net force 0 in the image?

• Because the elephants are the same size
• Because they are both pulling the same amount of force in opposite directions
• Because they are elephants
• Because they are pulling away from each other.

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Newton's 1st law is often called the _______.

• Newton's 2nd law
• action-reaction law
• law of equality
• law of inertia

When forces are balanced, what acceleration will exist?

• 9.8 m/s/s
• 0 m/s/s
• Equal to force
• Equal to mass

What term describes an object's resistance to changes in its motion?

• force
• velocity
• inertia
• acceleration

An object has no net force acting on it. Which statement below best describes its motion?

• It must be at rest.

• It is either at rest or is moving with a constant velocity.

• It is moving with a constant speed.

• It is accelerating.

Tags

NGSS.HS-PS2-1