Force & Motion

What is the net force?

• 5 N
• 45 N to the left
• 5 N to the right
• 45 N to the right

What is a force?

• the PUSH or PULL on an object 
• The MOTION an object creates
• The objects HITTING one another
• Going REALLY FAST

Which one is balanced?

• top
• bottom
• both

Is it BALANCED? 

• Yes
• No

What is the unit for FORCE? 

• N (Newtons)
• lbs (pounds)
• g (grams)
• m/s (meters per second)

If there are two forces going in the SAME direction, you would ...?

• (-) Subtract the forces
• (+) Add the forces
• Neither
• (x) Multiply

The force that acts in the opposite direction of motion when two surfaces come in contact. 

• Force
• Friction
• Static
• Kinetic 

Which type of friction is shown in the picture?

• fluid

• static

• rolling

• sliding

If the following objects were dropped from the same height, which one would hit the floor first?

• 
• 
• 

Which type of friction is shown in the picture?

• rolling

• static

• fluid

• sliding