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.

Physics Lab Worksheet ; On Target

For those who were not in class today we did our 'On Target' lab which can be found in your ivory booklet Projectile Motion page 19. We got into our groups and built a target launcher that would be able to fling a ping-pong ball a distance of 1 meter. We were able to use anything we could think of that would help us with this lab. Once we built our target launcher, we started to fill in our data tables. Although, it was kinda difficult, most of us groups got our data tables filled.

I think the next step would probably answer the 'Analyze' and 'Conclude and Apply'.

patrickd to scribe next.