Newton's Law & Motion Review

Objects tend to keep on doing what they are doing. This natural tendency to resist change in motion is called _________.

• Inertia
• Acceleration

• Momentum

• Friction

For the forces on an object to be unbalanced, the forces on each side are equal and opposite of each other.

• True

• False

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NGSS.HS-PS2-1

Which object will have the most force when accelerating at 1 m/s²?

• Bicycle

• Car

• Semi-truck

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NGSS.MS-PS2-2

A car accelerates from rest. Which of Newton’s Laws explains the situation?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• None of the above

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NGSS.HS-PS2-1

A hockey puck sliding on ice eventually comes to a stop. Which of Newton’s Laws explains the situation?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• None of the above

A swimmer pushes against the wall of a pool to propel themselves forward. Which of Newton’s Laws explains the situation?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• None of the above

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NGSS.MS-PS2-1

Use F=ma to solve the following problems.

A car with a mass of 1000 kg accelerates at a rate of 2 m/s^2. How much force is being applied to the car?

• 500 N

• 1000 N

• 2000 N

• 4000 N

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NGSS.MS-PS2-2

Use F=ma to solve the following problems.

With what amount of force will a car crash if the car has a mass of 4,200 kg and it has an acceleration of 1.5 m/s^2?

• 6300 Newtons

• 630 Newtons

• 2800 Newtons

• 280 Newtons

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NGSS.MS-PS2-2

Use mass (m) = Force (F) / acceleration (a) to solve the following problem.

If a bus hits a car with 25,000 Newtons and it was accelerating 1.7 m/s^2, what was the mass of the bus?

• 42,500 kg

• 4,250 kg

• 14,706 kg

• 1,476 kg

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NGSS.HS-PS2-1

Acceleration = Force / Mass

A skateboarder has a mass of 70 kg. He hits the gravel and takes a tumble with 700 N of force. What is the acceleration of the slide?

• 10 m/s^2

• 0.1 m/s^2

• 49000 m/s^2

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NGSS.MS-PS2-2