Newton's Laws of Motion Quiz

According to Newton's first law of motion, an object at rest will remain at rest unless acted upon by what?

• gravity

• friction

• external force

• inertia

What is the formula for Newton's second law of motion?

• F = mv

• F = ma^2

• F = m/a

• F = ma

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According to Newton's third law of motion, for every action, there is an equal and opposite what?

• reaction

• acceleration

• motion

• force

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What is the relationship between force and acceleration according to Newton's second law of motion?

• Force and acceleration are directly proportional.

• Acceleration causes force.

• Force and acceleration are inversely proportional.

• Force has no effect on acceleration.

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When a person jumps off a boat, the boat moves in the opposite direction. This is an example of which law of motion?

• Newton's first law of motion

• Newton's second law of motion

• Law of conservation of momentum

• Newton's third law of motion

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What is the unit of force?

• Newton

• Second

• Meter

• Kilogram

Which law of motion states that an object in motion will stay in motion with the same speed and direction unless acted upon by an external force?

• Newton's Second Law of Motion

• Law of Conservation of Energy

• Newton's First Law of Motion

• Newton's Third Law of Motion

What is the acceleration of an object with a mass of 5 kg and a force of 10 N?

• 2 m/s^2

• 20 m/s^2

• 5 m/s^2

• 0.5 m/s^2

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Which law of motion explains why a rocket moves forward when gases are expelled backward?

• Newton's first law of motion

• Einstein's theory of relativity

• Newton's third law of motion

• Newton's second law of motion

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What is the force required to accelerate an object with a mass of 2 kg at a rate of 4 m/s^2?

• 8 N

• 10 N

• 6 N

• 2 N

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