Newton's 2nd Law of Motion

A toy car with a mass of 1 kg is pushed by a child with a force of 10N.

What is the acceleration of the car as a result of this push?

• 10 m/s²

• 1 m/s²

• 10 m/s

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An F-16 fighter jet with a mass of 4000 Kg accelerates at 75 m/s²

What force is required from the jet’s engines to achieve this acceleration?

• 30,000 N

• 30 N

• 300,000 N

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Newton’s 2nd Law of Motion states that force is equal to the mass times the acceleration.

If the force acting on the object stays the same but the mass increases, what is most likely to happen to the acceleration of the object?

• Acceleration will increase.

• Acceleration will decrease.

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A 50 kg boy on a skateboard experiences a 75 N force as shown.

What is the acceleration of this boy?

• 1.50 m/s²

• 0.67 m/s²

• 25.00 m/s²

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The acceleration due to gravity on Earth is 10m/s². The force acting on an object on Earth is 16 Newtons.

What is the mass of this object on Earth?

• The mass of the object is 160 kilograms

• The mass of the object is 1.6 kilograms

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• 1000x35 = 35,000 N

• 1000/35 =

  28.6 N

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What is the formula for the 2nd law of motion?

• a = lw

• F = mama

• F = ma

• F = llama

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You pull a wagon with your younger sister in it. Which of these would accelerate the rate at which you can pull the wagon?

• pull the wagon with less force
• Pull the wagon with more force

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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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The masses of four objects are given in this table. If all objects are struck with the same amount of force, which one will have the greatest acceleration?

• Object 1
• Object 2
• Object 3
• Object 4

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