Newton's 2nd Law

What is Newton's 2nd Law?

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion.

• F = ma

• Friction

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Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

• 20 m/s²

• 0.5 m/s²

• 2 m/s²

• 120 N

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NGSS.MS-PS2-2

Find how much force the man will need to exert to move the car.

• 5000 N

• 50 N

• 20,000 N

• 500 N

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NGSS.MS-PS2-2

If the man pushes with an equal amount of force, which object will accelerate more?

• Car because it has more mass

• Lawnmower because it has less mass

• Car because it has less mass

• Lawnmower because it has more mass

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

A 25 kg bike accelerates at 10 m/s². What was the force?

• 250 N

• 2.5 N

• 25 N

• 15 N

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NGSS.MS-PS2-2

What unit do we measure force in?

• Kilometer/hr

• Joules

• Seconds

• Newtons

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NGSS.MS-PS2-1

What is force?

• A push on an object

• A pull on an object

• A push or pull on an object

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NGSS.MS-PS2-1

A 20-N net force acts on an object with a mass of 2.0 kg. What is the object's acceleration?

• 10 m/s²

• 0.1 m/s²

• 40 m/s²

• 22 m/s²

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NGSS.MS-PS2-2

A 50-kg crate is pushed with a horizontal acceleration of 20 m/s². What net force is acting on the crate?

• 2.5 N

• 0.4 N

• 1000 N

• 30 N

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NGSS.MS-PS2-2

An interaction between two objects that acts to change the motion of the two objects

• Velocity

• Acceleration

• Mass

• Force

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NGSS.MS-PS2-2

NGSS.MS-PS2-1