Newton's Laws of Motion Test

What is friction?

• The force that causes a moving object to slow down when it touches another object

• The force that causes an object to accelerate

• The force that causes an object to change directions

• The force that causes movement

Since friction is a force, what unit is friction measured in?

• MPH

• Inches

• Newtons

• Joules

How are speed and velocity different?

• Speed includes direction, velocity does not

• Velocity includes direction, speed does not

• Actually, they are not different

• Velocity is measured in time, speed is not

Who formulated the three basic laws of motion?

• Albert Einstein

• Sir Isaac Newton

• Galileo Galilei

• Nikola Tesla

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According to Newton's First Law, what happens to an object in motion?

• It will change speed and direction unless acted on by an unbalanced force

• It will stay in motion with the same speed and direction unless acted on by an unbalanced force

• It will stop immediately

• It will move in a circular path

According to Newton's Third Law, what happens for every action?

• There is a greater reaction

• There is an equal and opposite reaction

• There is no reaction

• There is a delayed reaction

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What does the term 'net force' refer to?

• The force of gravity only

• The total force acting on an object after all forces are combined

• The force applied by a person

• The force of friction only

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Which of the following best describes inertia?

• The rate at which velocity changes

• The force that pulls objects toward Earth

• The tendency of an object to resist a change in motion

• The amount of space an object occupies

Which law explains why passengers fly forward in a car when it suddenly stops?

• Law of Universal Gravitation

• Newton's First Law

• Newton's Third Law

• Newton's Second Law

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What does mass measure?

• The color of an object

• The speed of an object

• The amount of matter in an object

• The amount of space an object takes up