Force and motion

When a solid object moves through a fluid 

• Static friction 
• fluid friction 
• rolling friction 
• Sliding friction 

A balanced force has 

• no net force
• some net force
• a wee bit of net force
• a lot of net force

a push or pull is

• mass
• force
• inertia
• gravity

speed is

• the SI unit of force
• a push or pull
• the amount of mass in an object
• how fast an object travels

<--------8N  4N-------->

• 2N
• 12N
• 4N
• 32N

-------->17N  17N<--------

• 0N
• 17N
• 34N
• 49N

-------->6N  12N------->

•                               6N
•                              18N
•                            72N
• 2N

------->14N  -------->3N  -------->15N

• 23N
• 48N
• 2N
• 32N

a force that brings a body towards the center of the earth or another body having mass

• friction
• inertia
• gravity
• distance

M/S² measures

• acceleration
• force
• speed
• distance