PHY 111, Fall, 2005

Week 8

 

  Main Objectives
bulletYou should be able to explain:
bulletwhy we put telescopes on mountaintops or on satellites
bulletwhy we need telescopes other than optical ones
bulletwhy the Hubble telescope has better resolving power than much larger Earth-based telescopes
bulletwhat was wrong with the Hubble telescope initially and how results were affected
bulletwhat astronomers gain by using large arrays of radio telescopes that they couldn't get from just one
bulletYou should be able to state the assumptions of the kinetic theory of gases
bulletYou should be able to use kinetic theory to explain properties of gases such as the increase in your tire pressure after you have been driving for awhile.
bulletYou should understand hydrostatic and thermal equilibrium.
bulletYou should know
bulletthe mathematical relationship between mass and energy
bulletthe value of the speed of light
bulletthe relationship between the temperature of a gas and the speed of the molecules
bulletwhat neutrinos are and why they are important
bulletthe definitions of density and pressure
bulletYou should be able to explain
bulletthe three methods of heat transport and give an example for each
bulletwhy the pressure inside a star (or any gas) increases if its volume decreases
bulletYou should be able to describe:
bulletthe nuclear process that produces energy in the Sun including what conditions are necessary in order for it to take place.
bulletgranules, sunspots, and flares
bulletthe three outer layers of the Sun
Tuesday Discuss instruments used with optical telescopes, the Hubble telescope and telescopes for waves other than visible light. Breifly discuss nuclear energy.

Outside of class: Read Ch. 11 Sec. 2.  Go over the review questions for Chapter 5.

Thursday Discuss the properties of gases and apply these ideas to the interior of the Sun.  Continue to discuss other properties of the Sun.

Outside of class: Prepare for Tuesday's exam.