PS2.4 Newton's 2nd Law TCAP Review

An object's motion can change as a result of forces acting on it. Which pair of forces acting on an object will cause the greatest change in motion?

• 10 N and 15 N

• 5 N and 20 N

• 15 N and 15 N

• 10 N and 20 N

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Four cars of different masses are moving on the same road at the same speed. The mass of each car is shown in the image. If the same braking force is applied to all the vehicles, which car will slow down the fastest?

• Car A

• Car B

• Car C

• Car D

Tags

NGSS.MS-PS2-2

Four smooth blocks are being pushed along a smooth surface. The diagram shows the mass of the blocks and the force applied to each block. What can be concluded about the motion of the blocks?

• Block 1 will move the farthest.

• Block 1 will move farther than Block 3.

• Blocks 2 and 3 will not move.

• Block 4 will move farther than Block 2.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which tool could be used to determine the force needed to move an object over a flat surface?

• Prism

• Slinky spring

• Spring scale

• Triple beam balance

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NGSS.MS-PS2-2

A student attaches a rope to the handle of a chest loaded with books and measures the force needed to move it. What can be concluded from the data?

• As the mass of the chest increases, less force is required to pull it.

• As the mass of the chest increases, more force is required to pull it.

• The amount of frictional force increases as the mass of the chest decreases.

• The amount of frictional force decreases as the mass of the chest increases.

Tags

NGSS.MS-PS2-2

Janelle pushes a box filled with books across the floor and then adds more books. How will the motion of the box change?

• It will move slower because as mass increases, the force of friction between the surfaces also increases.

• It will move faster because as mass increases, the force of friction between the surfaces decreases.

• It will move with the same speed because the mass of the object does not affect the force of friction between the surfaces.

• It will move with the same speed because the same force was applied on the box in both cases.

Tags

NGSS.MS-PS2-2

A skateboard loaded with boxes is on a level surface. Two forces (F₁ and F₂) are acting on the skateboard as shown in the image. What is the net force acting on the skateboard, and in which direction will the skateboard move?

• 55 N; in the same direction as force F₁

• 55 N; in the same direction as force F₂

• 195 N; in the same direction as force F₁

• 195 N; in the same direction as force F₂

Tags

NGSS.MS-PS2-2

A team of lab students applied 100 N of force to an object moving across a flat surface. In each of four trials, the students varied the force of friction that the object experienced, as shown in the table. In which trial would the object move the fastest?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS2-2

Object A has a mass of 100 kg, and Object B has a mass of 75 kg. Both objects are resting motionless on the ground. Which statement describes the objects’ inertias?

• Object A has a greater inertia than Object B.

• Object B has a greater inertia than Object A.

• Both objects have the same inertias.

• Both objects have zero inertia.

The table shows the details of three moving objects. A student claims that it is easier to stop Object 2 than to stop Objects 1 and 3. What justifies the student’s claim?

• Object 2 has the least mass, so it has the least inertia.

• Object 2 has the least speed, so it requires the most force to stop.

• Object 2 is the slowest, so it experiences the least friction.

• Object 2 is the lightest, so it experiences the smallest gravitational force.

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1