newtons laws

What law is best described by inertia?

• 1st
• 2nd
• 3rd
• law of conservation of mass

• 1st
• 2nd
• 3rd
• law of motion

Equal and Opposite

• 1st
• 2nd
• 3rd
• speed 

A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.

• The Law of Inertia (1st law)
• The Law of Acceleration (2nd law)
• The Law of Conservation of Momentum
• Action Reaction Law (3rd law)

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

Force pair that has a net force of zero.

• Balanced force
• Unbalanced force

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

What is the magnitude (size) and direction of the net force?

• 15 N to the left
• 15 N to the right
• 1 N to the left
• 1 N to the right

When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?

• The cannon moving forward
• The cannonball moving forward
• The cannon moving backward
• The cannonball moving backward

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates