Forces Test Review

An object at rest is subjected to the forces shown in the free body diagram. Which statement best describes the motion of the object after the forces act on the object?

• The object will accelerate to the right.

• The object will remain at rest.

• The object will accelerate down.

• The object will accelerate to the left.

Tags

NGSS.MS-PS2-2

An object moving at 8 m/s to the left is subjected to the forces shown in the free body diagram. Which statement best describes the motion of the object after the forces act on the object?

• The object will accelerate to the right.

• The object will remain at rest.

• The object will accelerate down.

• The object will accelerate to the left.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What type of motion is shown in the given free body diagram?

• The object is at rest.

• The object is accelerating to the left.

• The object has a constant velocity.

• The object is accelerating to the right.

Tags

NGSS.HS-PS2-1

What type of motion is shown in the given free body diagram?

Tags

NGSS.MS-PS2-2

A 6 kg truck moving at 6 m/s comes to a stop in 8 seconds. What are the steps to find the force exerted on the truck?

• You can solve for force using τ=Fr

• You have to solve for acceleration using a=Δv/t and then use F=ma

• It is impossible to solve for force

• You can immediately solve for force using F=ma

Tags

NGSS.HS-PS2-1

What is the force that is caused by two surfaces rubbing together?

• gravity

• normal force

• tension

• friction

What is the force that is caused by a rope or string pulling an object?

• gravity

• friction

• normal force

• tension

The free body diagram represents the forces acting on a block at rest on a table. What is the force that is pushing the block up?

• frictional force

• normal force

• gravitational force

• tension force

The free body diagram represents the forces acting on a block at rest on a table. What is the force that is pulling the block down?

• applied force

• gravity

• friction

• normal force

Tags

NGSS.MS-PS2-4

How do you find the resultant vector of two vectors that are perpendicular to each other?

• Use the Pythagorean Theorem

• It is impossible

• Subtract the magnitudes and keep the direction of the bigger vector

• Add the magnitudes and keep the direction