HS Newton's Laws of Motion

A box is initially at rest on a frictionless surface. It then experiences two forces, as shown in the picture. Which best describes what will happen to the box?

• It will move at a constant speed to the left.

• It will move at a constant speed to the right.

• It will move at an increasing speed to the left.

• It will move at an increasing speed to the right.

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NGSS.MS-PS2-2

A scientist is investigating the inertial of several objects. He records the following data. Which object has the greatest inertia? 

• bowling ball

• toy wagon

• bicycle

• wheelbarrow

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NGSS.MS-PS3-1

The table shows the acceleration due to gravity on four different planets. What planet is a person standing on if the person has a mass of 85.0 kg and weighs 305 N?

• Mars

• Mercury

• Venus

• Earth

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NGSS.MS-PS2-4

NGSS.MS-PS2-5

What force, in newtons, is required to keep the object in the picture below at rest?

• 0 N

• 12 N

• 18 N

• 48 N

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NGSS.MS-PS2-2

If the net force acting on an object is doubled, what happens to the acceleration of the object?

• It is halved.

• It is quadroupled.

• It is doubled.

• It is unchanged.

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NGSS.MS-PS2-2

A force of 25 newtons east and a force of 25 newtons west act concurrently on a 5.0-kilogram cart. What is the acceleration of the cart?

• 0 m/s²

• 0.20 m/s² east

• 1.0 m/s² west

• 5.0 m/s² east

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NGSS.MS-PS2-2

An unbalanced force of 10.0 newtons is applied to an object of mass 4.0 kilograms. What is the acceleration of the object?

• 0.40 m/s²

• 2.5 m/s²

• 14 m/s²

• 40. m/s²

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NGSS.MS-PS2-2

Which of the following objects would experience the greatest acceleration if the same unbalanced force were applied to each?

• An object of mass 1 kg

• An object of mass 2 kg

• An object of mass 3 kg

• An object of mass 4 kg

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NGSS.MS-PS2-2

A horizontal force of 24 newtons is applied to three stacked copies of a textbook on a frictionless surface. The textbooks accelerate at a rate of 2.0 m/s². What is the mass of one textbook?

• 4.0 kg

• 8.0 kg

• 12 kg

• 18 kg

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NGSS.MS-PS2-2

Brennan is traveling in a car at a constant speed and in a constant direction. Once the brakes are applied, Brennan's upper body continues to move forward until a force in the opposite direction is applied on his body. Brennan's movement is an example of which scientific law?

• the law of conservation of mass

• the law of gravity

• the law of inertia

• the law of magnetism