Newton's Third Law of Motion Quiz

A group of students was responsible for creating an object that demonstrates Newton’s third law of motion. They decided to create a balloon air rocket. Which of the following does NOT correctly describe how the air rocket works?

• The action force is air coming out of the balloon, while the reaction force is the balloon moving forward.

• The action and reaction forces are equal in magnitude.

• The balloon pushing on the air moves in the opposite direction from the air pushing on the balloon.

• The action force is larger than the reaction force.

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NGSS.MS-PS2-1

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.

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NGSS.MS-PS2-2

How would you describe the forces at work on the vase below?

• The force of gravity is stronger than the normal force.

• The normal force is stronger than the force of gravity.

• There are no forces acting on the vase because it is at rest. Forces are only at work if an object is moving.

• The force of gravity is pulling down on the vase, but it is balanced by the normal force pushing upward. The object is at rest because the forces are balanced.

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NGSS.MS-PS2-4

The force diagrams show different forces acting on three different blocks. How many blocks will experience a change in motion?

• 0

• 1

• 2

• 3

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which statement concerning metals is correct?

• Metals are soluble.

• Metals conduct electricity.

• Metals form a rigid structure.

• Metals have a low melting point.

The image shows a roller coaster cart moving along a track. Which statement BEST describes the kinetic and potential energies of the cart at Location X compared with the kinetic and potential energies of the cart at Location Y?

• The cart has more potential energy and less kinetic energy at Location X than it has at Location Y.

• The cart has less potential energy and more kinetic energy at Location X than it has at Location Y.

• The cart has the same amounts of potential energy and kinetic energy at Location X as it has at Location Y.

• The cart has more potential energy and kinetic energy at Location X than it has at Location Y.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following statements is true about the net force on the object in the diagram?

• A. The vertical net force is 0 N; the horizontal net force is 65 N to the right.

• B. The vertical net force is 0 N; the horizontal net force is 65 N to the left.

• C. The vertical net force is 65 N to the left; the horizontal net force is 0 N.

• D. The vertical net force is 65 N to the right; the horizontal net force is 0 N.

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NGSS.MS-PS2-2

Which of the following statements is true about the energy transformation in a pendulum swing?

• Potential energy is maximum at the lowest point of the swing.

• Kinetic energy is maximum at the highest point of the swing.

• Potential energy is converted to kinetic energy as the pendulum swings down.

• Kinetic energy is converted to potential energy as the pendulum swings down.

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NGSS.MS-PS3-4

Which of the following statements is true about the energy transformation in a roller coaster ride?

• Kinetic energy is maximum at the top of the hill.

• Potential energy is maximum at the bottom of the hill.

• Kinetic energy is converted to potential energy as the coaster climbs a hill.

• Potential energy is converted to sound energy as the coaster descends a hill.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following best describes the forces acting on a book resting on a table?

• The force of gravity is stronger than the normal force.

• The normal force is stronger than the force of gravity.

• The forces are balanced, with gravity pulling down and the normal force pushing up.

• There are no forces acting on the book because it is at rest.

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NGSS.3-PS2-1