For a Grade Review

What does the F stand for on a free-body diagram?

• Free

• Fan

• Net

• Force

What is the NET FORCE of this diagram?

• 17 N, right

• 17 N, left

• 23 N, right

• 12 N, up

Which of the following is true about this free-body diagram?

• the forces are are balanced

• the object is free-falling

• the object is moving upward

• the forces are unbalanced

8 N to the left , and 4 N to the right. Find the net force. Is this balanced 

• 12 N Right  No
• 4 N Left  No
• 12 N Right  Yes
• 4 N Left  Yes

"If we apply a ___________ to an object, its __________________ will change and it will  ______________."

• force, accelerate, gravity
• accelerate, inertia, gravity
• force, velocity, accelerate
• velocity, gravity, inertia

It is defined as forces that are equal in magnitude.

• Unbalanced Forces

• Forces

• Balanced Forces

• Net force

Use the picture as reference. If the force of the girl pushing is 30N, and the force of the boy who is also pushing is 30N, what is the net force?

• 0N

• 60N

• 900N

• 1N

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N 

Name the missing force...

• weight force
• normal force
• applied force
• frictional force

Balanced or unbalanced?

• balanced
• unbalanced