Introduction to Forces and Free Body Diagrams

Name the missing force...

• weight force

• normal force

• applied force

• frictional force

Tags

NGSS.MS-PS2-4

Balanced or unbalanced?

• balanced

• unbalanced

Tags

NGSS.MS-PS2-1

Which freebody diagram best represents a bookbag resting on the classroom floor?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-4

Which freebody diagram best represents a desk being pushed across the classroom floor?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

The down-arrow in this diagram is most-likely:

• gravity

• normal

• a push or pull

• friction

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

NGSS.MS-PS2-4

If this object were moving right, the left-arrow in this diagram is most-likely:

• gravity

• normal

• a push or pull

• friction

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Whenever an object is moving, there is always this force opposing the motion:

• inertia

• momentum

• friction

• applied force

A man pushes a box across the floor at a constant velocity. There is a force on the box pulling it toward the center of the earth. This is called the

• force of gravity

• normal force

• friction force

• applied force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is the net force?

• 3 N Right

• 3 N Left

• 17 N Right

• 17 N Left

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

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

Tags

NGSS.MS-PS2-2