Newton's Laws Test Review 2024

A student is pushing two blocks on a smooth, frictionless surface. What force is required in order to produce an acceleration of 2.5 m/s2?

• 12 N
• 30 N
• 50 N
• 75 N

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

The diagram shows two arrows that represent the directions of two forces acting on a 1-kilogram ball. The arrows do not represent amounts of force, they only represent the directions of the two forces. How should the diagram be labeled if the ball is accelerating to the west at a rate of 1 m/s2? Write the correct forces in the boxes below.

• 12 newtons
• 10 newtons
• 8 newtons
• 7 newtons
• 5 newtons

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NGSS.MS-PS2-2

Using F=ma, explain why a train is more difficult to start moving and more difficult to bring to a stop than an average sized car. (Remember to write in COMPLETE SENTENCES!!)

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NGSS.MS-PS2-2

A 2000 kg truck and a 500 kg car are racing. The same amount of force is applied to each of them. Which statement below best describes the acceleration of the vehicles?

• The truck will accelerate twice as fast.
• The car will accelerate four times as fast.
• The car will accelerate twice as fast.
• The truck will accelerate four times as fast.

Tags

NGSS.MS-PS2-2

In a series of controlled experiments, students measure the different forces acting on a skateboarder as he travels down a hill. Then, they calculate the skateboarder’s acceleration for each of these forces. The students’ data table is shown below: Based on the observations and the calculations made by the students, what is the estimated force applied to the skateboarder if the acceleration is .9 m/s2? Record your answer.

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NGSS.MS-PS2-2

A sledgehammer has a mass of 3.5 kilograms. What net force, to the nearest whole newton, will a person need to apply to accelerate the sledgehammer at a rate of 4.0 m/s2?

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NGSS.MS-PS2-2

An unbalanced force of 32 newtons is shown acting on an 8.0-kilogram object. Based on this information, complete the sentence to predict the motion of the object. Enter your answer in the box. Your answer must be a whole number. As long as the force acts on the object, the object will continue to move toward the east and its velocity will increase by ___________ m/s every second.

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NGSS.MS-PS2-2

Two students push on the opposite sides of a crate, with the force applied by each student in newtons (N), as shown in the diagram. Assuming the crate is on a frictionless surface, describe the effect of these forces on the crate. ● Will the crate move toward the left, toward the right, or not at all? ● What is the direction and the magnitude of the net force on the crate? Review the diagram carefully. Then enter your response in the box provided.

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Four students designed and built air propelled rockets that were launched into the air. Their data are recorded in the table. Which rocket had the greatest acceleration?

• Rocket 1
• Rocket 2
• Rocket 3
• Rocket 4

Tags

NGSS.MS-PS2-2

The diagram shows a duck swimming in a stream in the opposite direction the stream is flowing. The duck pushes against the water, so the water pushes the duck forward with 20 newtons of force. The water also exerts 15 newtons of resistive force against the duck. Which statement best describes the resulting motion of the duck?

• The duck will stop moving.
• The duck will stop and then start moving again.
• The duck will continue moving in its current direction.
• The duck will move in the direction that the stream is flowing.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2