Forces Unit Review

This test paper is sitting at rest on your desk. Which of the following statements best describes this situation?

• a.  There are no forces acting on your paper.
•  b.  Your paper pushes on the desk only.
•  c.  The desk pushes on your paper only
• d.  The forces acting on the paper are balanced.

What is the net force on the box shown below?          

• a.  10 N to the left 
• b.10 N to the right
• c.  60 N to the left
• d.  50 N to the right

What describes the tendency of a moving object to continue moving at the same velocity?

• a. acceleration
• b. velocity
• c. speed
• d. inertia

Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

This force diagram shows

• A balanced force
• an unbalanced force right
• An acceleration left
• A net force of 20 N

The acceleration caused by a force on a 30 kg mass would be ______________ than that same force on a 40 kg mass.

• greater

• less

• equal

A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

• 20 m/s²

• 0.5 m/s²

• 2 m/s²

• 120 N

The net force (Fnet) acting on the object is _____ N.

A small bug splats against a car windshield. Which object experiences greater force?

• The bug

• The windshield

• Both experience the same force

• Not enough info given