Newton's law

What is Newton's first law

• Action-reaction

• F=MA

• inertia

• D= M/V

What are Newton's laws

• acceleration, speed

• Inertia, F=MA, action-reaction

• Inertia, A=F/M, mass

• action-reaction, force

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An object will not change its motion unless acted on by an unbalanced force.

• Newton's fourth law

• Newton's Second law

• Newton's third law

• Newton's first law

Which formula represents Newton's 2nd law

• F=MA

• D=M/V

• F=MT

• S=D/T

What is the definition of Newton's third law

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

• F=MA

• an object stays at rest unless acted upon by an unbalanced force.

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If you have a hockey puck sliding along a table, it will eventually come to a stop. Which Newtons laws is the example describing?

• Newtons 1st law

• Newtons 2nd law

• Newtons third law

• All of the Above

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How does Newtons third law explain how a rocket takes off?

• The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.

• The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.

• The rocket is at rest until ignition.

A car has a mass of 750kg. What force is acting on the car if its acceleration is 6m/s.

• 300kg

• 4500n

• 96n

• 5m/s

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NGSS.MS-PS2-2

While pushing a very heavy box, Derek notices that it was much harder for him to get the box to start moving than it was for him to get the box to continue to move once it had started. This is an example of which mechanics principle?

• Newtons 3 law

• Newtons first law

• law of frictional force

How fast an object is going is speed

• true

• false

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