Exploring Newton's Laws of Motion

What is the unit of force in the International System of Units (SI)?

• Joule

• Newton

• Watt

• Pascal

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NGSS.HS-PS2-1

A push or pull that can cause an object to move, stop, or change direction is called a:

• Friction

• Force

• Mass

• Energy

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NGSS.MS-PS2-2

Which of the following best describes a scientific law?

• A guess about how things work

• A statement based on repeated experimental observations

• An opinion of a scientist

• A random idea

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NGSS.MS-PS2-4

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NGSS.MS-PS2-2

Which of the following is an example of friction?

• A ball rolling to a stop on the ground

• A magnet attracting a nail

• A light bulb glowing

• Water boiling

A force that does not cause a change in motion because it is balanced by another force is called:

• Unbalanced force

• Balanced force

• Net force

• Friction

Which of Newton’s laws states that an object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force?

• First Law

• Second Law

• Third Law

• Law of Gravity

What is the name for the total force acting on an object?

• Friction

• Net force

• Balanced force

• Gravity

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NGSS.MS-PS2-2

Which of the following is an example of Newton’s Third Law of Motion?

• A book resting on a table

• A swimmer pushing water backward and moving forward

• A car speeding up

• A ball rolling down a hill

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NGSS.MS-PS2-1

What is the direction of the force that friction always acts in?

• The same direction as motion

• Opposite to the direction of motion

• Upward

• Downward