8.6 7.10

How will this object act in response to these forces?

• The object will remain at rest.

• The object will move upward only.

• The object will move to the right only.

• The object will move upward and toward the right.

Tags

NGSS.MS-PS2-2

If the car in the diagram rolls faster and faster as it moves down the ramp, you can be sure that

• there is no friction acting on the object.

• the forces acting on it are unbalanced.

• the net force on the car is 0 N.

• only gravity is acting on the car.

Tags

NGSS.MS-PS2-2

Based on the information in the diagram, what will happen next?

• The flag on the rope will be pulled to the right.

• Both teams will be pulled toward the center.

• The flag on the rope will be pulled to the left.

• Both teams will be pushed away from the center.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student uses a magnet to move a .04 kg ball bearing. The magnet exerts a force of 4N, which causes the ball bearing to begin moving. What is the acceleration of the ball bearing when it begins to move?

• .01 m/s²

• .16 m/s²

• 3.96 m/s²

• 100 m/s²

Tags

NGSS.MS-PS2-2

What is the net force on the box in the diagram?

• 10 N to the left

• 5 N to the right

• 5 N to the left

• 0 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Look at the drawing shown. Which force (N), when placed to the right of the ball in the drawing, would cause the ball to move right?

• 2 N

• 7 N

• 12 N

• 17 N

Tags

NGSS.MS-PS2-2

The diagram shows a luggage cart being pushed by one person. Just a few minutes ago, he had someone else helping him push the cart. The two of them pushed with a force of 35 N, which caused the cart to move at a constant speed of 5 m/s. What is likely to happen now that the person is pushing the cart himself?

• The speed of the cart will decrease.

• The speed of the cart will not change.

• The cart will come to a complete stop.

• The speed of the cart will decrease to 4 m/s.

Tags

NGSS.MS-PS2-2

Which object in the diagram above is acted on by a net force of 5 N to the right?

• object A

• object B

• object C

• object D

Tags

NGSS.MS-PS2-2

The graphs show the motion of four different objects. Each object moved in a single direction during the time period shown in the graph. Which of the objects were acted on by unbalanced forces?

• objects B, C, and D only

• objects B and D only

• object B only

• object A only

Tags

NGSS.MS-PS2-2

Which object was acted on by balanced forces during the time period shown on the graph?

• object A

• object B

• object C

• object D