Monday, May 02

Hey, grade 12's. If you were not in class today, this is what we do:

First, we watched a video about Satellite Motion. We took down 5-7 facts about the movie. Also we handed our facts to Ms.K

After the movie, we went over the questions on page 32 in our grey booklet - Grade 12 Physics: Fields Exploration of Space. Here are the answers:

1. PE= -3.13x10^10 J

2. ET=EK+EP

=-2.36x10^9 J

3.∆Etotal=∆Etotal(in orbit)-∆Etotal(on earth)

=-2.36x10^9 J - (-3.13x10^10 J )

= 2.89x10^10 J

4. Etotal(in orbit) =-2.36x10^10 J ; you would need to put in 2.36x10^9 J of energy to escape earth's orbit

5. * R must include Re+ Rsatellite

PE= -1.18x10^11 J

Although there would be no class tomorrow due to a staff meeting, we would be going over the questions on REVIEW: CHAPTER 8 found on page 36-37 in the grey booklet.