What is the formula for calculating force according to Newton's Second Law of Motion?

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NGSS.MS-PS2-2

If a car has a mass of 1000 kg and accelerates at 2 m/s², what is the net force acting on it?

• 500 N

• 1000 N

• 2000 N

• 4000 N

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NGSS.MS-PS2-2

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

• An object in motion stays in motion unless acted upon by an external force.

• Force equals mass times acceleration.

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

• The acceleration of an object is directly proportional to the net force.

A rocket is launched into space. Which of Newton's laws explains the motion of the rocket as it expels gas downwards?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• None of the above

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NGSS.MS-PS2-1

Calculate the acceleration of a 5 kg object when a net force of 20 N is applied to it.

• 2 m/s²

• 4 m/s²

• 5 m/s²

• 10 m/s²

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NGSS.MS-PS2-2

Which of the following scenarios best illustrates Newton's Third Law of Motion?

• A book resting on a table

• A car accelerating on a highway

• A swimmer pushing water backwards to move forward

• A ball rolling down a hill

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NGSS.MS-PS2-1

There are two roller coasters operating side by side. One of the roller coaster's cars weigh 400 kg and the other roller coaster's cars weigh 1000 kg. What is true about the difference between the two roller coasters?

• The two roller coasters need the same amount of force to work.

• The 1000 kg car requires more force to move than the 400 kg car

• The 1000 kg car can accelerate more quickly than the 400 kg car with the same force

• The 1000 kg car will not move at all

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NGSS.MS-PS2-2

A 10 kg object is subjected to a net force of 50 N. What is its acceleration?

• 2 m/s²

• 5 m/s²

• 10 m/s²

• 20 m/s²

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NGSS.MS-PS2-2

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

• A rocket launching into space

• A car coming to a stop at a red light

• A ball bouncing off a wall

• A ping pong ball rolling with more acceleration than a baseball

When a car comes to a sudden stop, but the person's body inside it keeps moving forward, this is (pick TWO answer choices):

• Newton's Second Law

• Newton's Third Law

• inertia

• Newton's First Law