Understanding Newton's Laws of Motion

What is the formula for Newton's Second Law of Motion?

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Which of the following best describes Newton's First Law of Motion?

• Objects accelerate when a force is applied.

• Objects at rest stay at rest, and objects in motion stay in motion unless acted upon by an unbalanced force.

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

• Force equals mass times acceleration.

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Which law explains why passengers move forward in their seats when a car suddenly stops?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Gravity

A soccer ball is kicked and accelerates across the field. Which variable would increase the acceleration if the force applied stays the same?

• Increasing the mass of the ball

• Decreasing the mass of the ball

• Keeping the mass the same

• None of the above

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

• A book resting on a table

• A swimmer pushing off the wall and moving forward

• A ball rolling down a hill

• A car parked in a garage

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A rocket launches upward. Which Newton's law explains the rocket's lift-off?

• First Law

• Second Law

• Third Law

• Law of Conservation of Energy

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• It is halved

• It stays the same

• It is doubled

• It becomes zero

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During an amusement park ride, passengers feel pushed outward as the ride spins. Which law is responsible for this sensation?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Universal Gravitation