Friday, January 12, 2018

MOMENTUM

Watch The Video


The Mechanical Universe: 15. Conservation of... by physics-lnr After studying the material of this chapter, you should be able to:
1. Define linear momentum and write the mathematical formula for linear momentum from memory.
2. Distinguish between the unit of force and momentum.
3. Write Newton's Second Law of Motion in terms of momentum.
4. Define impulse and write the equation that connects impulse and momentum.
5. State the Law of Conservation of Momentum and write, in vector form, the law for a system involving two or more point masses.
6. Distinguish between a perfectly elastic collision and a completely inelastic collision.
7. Apply the laws of conservation of momentum and energy to problems involving collisions between two point masses.
8. Define center of mass and center of gravity and distinguish between the two concepts.


Monday, December 25, 2017

KITTY PURRY

What is the acceleration of the cats and the tension of the ropes the rope.  First correct answer gets???

Possible titles :
 PHUrry  physics
Cats and the?
Link to picture:
https://drive.google.com/open?id=166YN8M5C0FMbq0vffIjuKTFVEdUhYu6q


Try problem #1 on the following AP exam
https://drive.google.com/open?id=1gIo_iixpV3J9YuMOGCD3iZzTNQE00mVX

Telstar #1
Calculate where to put aconmunications  satellite so it will be above the same point above the earth all the time.  Geosynchronous Orbit!


The little satellite that could!!!

America’s Defence Meteorological Satellite Programme (DMSP), which has overseen the construction of eight F-series satellites that use microwaves sensors to monitor sea-ice coverage. These probes, which have lifespans of three to five years, have shown that millions of square kilometres of sea ice have disappeared from the Arctic over the past 20 years, allowing less solar energy to be reflected back into space – and so further increasing global temperatures – while also disrupting Inuit life and wildlife in the region.
At present three ageing satellites – DMSP F16, F17 and F18 – remain in operation, though they are all beginning to drift out of their orbits over the poles. The latest satellite in the series, F19, began to suffer sensor malfunctions last year and finally broke down a few weeks ago. It should have been replaced with the F20 probe, which had already been built and was being kept in storage by the US Air Force. However it had to be destroyed, on the orders of the US Congress, on the grounds that its storage was too costly.

Any guess on the cost to build a new satellite?

Friday, December 22, 2017

JUMPING TO CONCLUSIONS

UNIT:Fc Centripetal Force
DAY:BREAK WORK
ACTIVITY:JUMPING TO CONCLUSIONS
PART 1
Part 2


Watch the 2 videos.

RECORD DATA IN YOUR NOTEBOOK
FIND THE GENERAL SOLUTION THAT WOULD PREVENT THE PROBLEM
APPLY KEY PSS

Did Steve test his idea out? Did he need to test his idea?





Tuesday, December 12, 2017

UNIT:PROBLEMS
DAY:
ACTIVITY:SUB STUDY
Attempt all work.  Write down specific questions. include page numbers ect

  1. DON'T TOUCH ANYTHING IN S-10
  2. 20 Points Chapter Problems Circular Motion
    1. Any Problems with space or animals or appliances or amusement rides 
  3. COMPLETE EXTRA DRILL ON DIFFICULT TOPICS (FORCES AND MOTION ONLY)
  4. COMPLETE THE BUS STOP ACTIVITY IN YOUR GROUPS
    1. GROUP LEADERS (READ AND FOLLOW DIRECTIONS)
      1. ANGIE S
      2. Andrew D
      3. Andrew H
      4. Michelle L.

Wednesday, November 29, 2017

multiple Body Problems

UNIT:Dynamics
Mechanical Systems

  • Draw a picture with all the forces acting upon it.  (F.B.D)



  • Assign a direction to be positive.  (F.O.R) + usually     preferred  for the direction of acceleration.



  • Write a relationship for the sum of the forces in the x and y direction
  • Substitute and solve for unknown terms this may need to be done repeatedly



  • In a system that includes Multiple Bodies
  •   write the equation for each body
  •   write an equation for the combined system



* Note:  If objects are bound, they must share the same  motion but not necessarily the same force.

Monday, November 27, 2017

TODAYS NOTES HW

UNIT: Dynamics
DAY: 36
ACTIVITY:Friction

 NOTES


HW.  CALCULATE THE acceleration of the object if it is sliding down the ramp

P:Calculate the acceleration if the object is sliding up the ramp>
  • Q:  Could it be sliding up the ramp at constant velocity?  EXPLAIN.