Newton's Laws Calculations

A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this?

• Newton's 1st Law - Law of Inertia

• Newton's 2nd Law - Law of Acceleration

• Newton's 3rd Law - Law of Force Pairs (Action, Reaction)

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A skateboarder pushes the ground BACKWARDS which causes the board to move FORWARD.

• Newton's 1st Law - Law of Inertia

• Newton's 2nd Law - Law of Acceleration

• Newton's 3rd Law - Law of Force Pairs (Action, Reaction)

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NGSS.MS-PS2-1

If force is applied to an object on two sides, and that force is NOT the same, then the object will move in the direction of the greater force. Which type of force is responsible for this?

• Balanced Force

• Unbalanced Force

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A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object.

• 160 m/s²

• 6.4 m/s²

• 0.16 m/s²

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Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

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If a 10 kilogram object accelerates suddenly at 15 m/s², how much force was applied to the object?

• 150 Newtons

• 15 Newtons

• 150 kilograms

• 100 kilograms

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A force of 250 N is applied to an object that accelerates at a rate of 5 m/s². What is the mass of the object? To solve this problem you must do -

• 250 ÷ 5

• 5 ÷ 250

• 250 x 5

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A 50 kg skater pushed by a friend accelerates 5 m/s². How much force did the friend apply? To solve this problem you must do -

• 50 ÷ 5

• 5 ÷ 50

• 50 x 5

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A car of mass 1000 kg is accelerating at a rate of 2 m/s^2. What is the net force acting on the car?

• 2000 N

• 500 N

• 1000 N

• 1500 N

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Which of Newton's Laws explains why passengers move forward in their seats when a car suddenly stops?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them