PHY 181, Fall, 2006

Week 9

 

  Main Objectives
bulletBe able to solve problems using conservation energy and the work-energy theorem
bulletBe able to define the term "conservative force" and explain why we can only define potential energy for conservative forces
bulletBe able to calculate the potential energy associated with a given force
bulletBe able to use a potential energy diagram to make predictions about the motion of an object
bulletGiven a potential energy function, be able to find the force with which that energy is associated
bulletBe able to distinguish between work and power
bulletBe able to state Newton's Law of Gravity and Kepler's Laws of Planetary motion
bulletBe able to show how Kepler's third law arises from the law of gravity
bulletBe able to apply gravitational potential energy to orbits and escape speeds
Tuesday Discuss conservative forces and calculating potential energy.   Discuss potential energy diagrams and thermal energy.  

Outside of class: Read Ch. 11 sections 7-9 and Ch. 10 Sec 7.  Complete Ch. 10 workbook exercise 25 and Ch. 11 workbook exercises 17, 19, and 21.  Complete Ch. 10 problem 29 and Ch. 11 problems 18b, 23, 31, 44, and 48b to be turned in on Thursday.  Begin reviewing for exam.
Thursday Complete anything that we didn't finish on Tuesday.   Discuss the universal law of gravity, Kepler's laws of planetary motion and gravitational potential energy.

Outside of class: Complete your review for the exam.
Friday Exam III on Chapters 9, 10, and 11

Outside of class: Read Ch. 12.  Do workbook exercises 7 and 9.  Complete Ch. 12 homework 2, 16, 35, 44, and 63 to be turned in on Tuesday.