1. Newton's Third Law of motion and momentum
Subtitle

2. Newtons Third law
Whenever and object exerts a force on a second object, the second object exerts an equal and opposite force on the first object.
Referred to action and reaction forces

3. Action and reaction forces
Equal in size and opposite directions
Example:
When you press your hand against a wall your hand exerts a force on the wall, known as the action force. The reaction force is caused when the wall gives back an equal and opposite force against you hand.

4. Action-reaction forces do not cancel
Do not act on the same object
When a equal and opposite force act on the same object do they result in a net force of zero.
Net force- Overall force acting on an object.

5. Momentum The product of any objects mass and its velocity.
An object has a large momentum if the products mass and velocity is large.
An object with large momentum is hard to stop
Momentum formula: Momentum = Mass x Velocity

6. Conservation of momentum
Conservation- When something has a constant value
Law of conservation of momentum- if no net force acts on a system, then the momentum in the system does not change

7. Summary video-

8. Quiz:

9. What did Newton's third law refer to?
Time and reaction forces
Action and reaction forces
Distance and reaction forces
None of the above

10. Action and reaction forces
Equal in direction opposite in size
Equal in size opposite in direction
None of the above

11. Action and reaction forces
A) Do not act on the same object
B)Do not cancel
C) All of the above

12. Momentum The product of any objects mass is acceleration
The product of any mass is velocity
A product with a small momentum is easy to stop
None of the above

13. Conservation of Momentum
When something does not have a constant value
If no net force acts on a system then the momentum in the system will change
if no net force acts on a system, then the momentum in the system does not change