1. Physics 11 Advanced
Mr. Jean
April 11th, 2012

2. The plan: Video clip of the day Quiz reminder & topics
Newton’s Third Law applications
2d applied forces

3. Quiz Info:
Date: April 16th, 2012
Time: Period #1
Show up early.

4. Quiz Chapter #4: Chapter #4: Inertia Weight
Accelerations due to gravity
Surface Friction
Including using coefficient tables
Static Friction
Kinetic Friction
Free Body Diagrams
With & Without motion

5. Quiz Chapter #5: Chapter #5: Newton’s first Law - Inertia
Newton’s second Law – F = ma
Newton’s third Law
Dynamics and Kinematics together woohoo
Applying Constant Acceleration Models
Determining net forces
Inclined Planes
With & without 2d applied force
Free Body Diagrams

6. Format: Multiple Choice True & False Short & Long Answer 15 points
Force diagrams
Friction
Combining dynamics & kinematics
2d applied forces

7. Coefficients of Frictions:

8. Kinetic Friction vs. Static Friction:

10. Coefficient Table:

11. Newton’s Third Law:

16. Static Friction vs. Kinetic Friction:

17. Inclined Plane Intro:

19. Situation:
Emma is standing on an icy hill. Brooklyn gives Emma a small push down the hill. Emma slides down the hill.

20. Inclined Planes Force Diagrams:
Step #1:
Draw the coordinate system with the x-axis parallel to the ramp.
Step #2:
Let the direction pointed downwards be in the positive direction.

21. Step #3: Step #4: Break the diagram into it’s components.
Fg = Force of gravity perpendicular to inclined plane.
Fg = Force of gravity parallel to inclined plane.
Step #4:
The force of gravity will remain the force of gravity regardless of what we do to the situation, thus we can solve for the component of the normal force.

22. Force Diagram with components:

23. Tomorrow’s class: Detailed example of inclined planes
Discussion about components of forces…
Ie: How do you know which trigonometric equation to use when you change the coordinate system?

24. To do:
P. 208
#25
#36
P. 213
#35