Newton's Laws Quiz

Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?

• feather

• iron

• depends on the friction

• same

An object and rest will stay at rest and an object in motion will stay in motion unless acted on by an outside force.

• 4th Law of Motion

• 1st Law of Motion

• 3rd Law of Motion

• 2nd Law of Motion

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

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

NGSS.MS-PS2-1

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

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

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

• force
• velocity
• inertia
• acceleration

If the force applied on an object is increased what will happen to its acceleration?

• increase

• decrease

• stay the same

• nothing, zilch, nada

A book exerts a force of 5 N on a table top. How much force is exerted back on the book?

• 0 N
• 5 N
• 10 N
• 2.5 N

What is the reaction force that allows you to walk across the floor?

• force equal to your weight

• friction

• gravity

• newtons

You are riding in a car without wearing a seat belt and the car hits a tree and stops. Which of the reasons below best explains why you fly forward and hit the dashboard of the car?

• There is no longer any force on the car. Since you were not wearing your seat belt the force is still on you pushing you forward until the dashboard cancelled it out.

• Because the force was only applied to the car. Since you were not wearing your seat belt you continued moving forward until the dashboard stopped you.

• The force was applied to the tree and to you since you were in the car. This force on you would actually cause you to fly out the back window of the car.

• Since the car was stopped you were also stopped and would not have hit the dashboard.

Tags

NGSS.HS-PS2-1