Newton's Laws of Motion

When two equal forces act in opposite directions on an object, they are called ______________________.

• frictional force

• balanced forces

• centripetal force

• gravitational force

What law is best described by inertia?

• 1st

• 2nd

• 3rd

Acceleration is due to a force put on an objects mass.

• 1st Law

• 2nd Law

• 3rd Law

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Any push or pull on an object.

• force

• velocity 

• inertia

• momentum

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What is the net force acting on the object?

• 20 N Right

• 40 N Right

• 20 N Left

• 40 N Left

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What is the net force?

• 40 N left

• 0 N Balalnced

• 400 N right

• 40 N right

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Match the following description of one of Newton's Laws to the name of the law.

• For every action, there is an equal & opposite reaction.

• Newton's Second Law

• Objects in motion stay in motion, and objects at rest stay at rest unless a force acts upon them.

• Newton's First Law

• The force needed to move an object is equal to the mass of the object times acceleration.

• Newton's Third Law

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According to Newton’s third law of motion, the strength of a reaction force is ​ (a)   the strength of the action force.

• equal

• mass

• newton

• acceleration

• net

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A person is pushed forward into their seat belt when a car stops.  Which law does this best illustrate?

• 1st inertia

•  2nd acceleration

• 2 and 3 acceleration and action/reaction

• 3rd  action/reaction

A space shuttle only has enough fuel to get it out of Earth’s atmosphere. Once the space shuttle is in space (where there is no friction/ air resistance) it will continue moving even without any fuel because of ________.

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• The Law of Space and Redundancy Law