Monday, June 18, 2012

Unit 3 Acceleration

In Unit 3 we learned a lot about acceleration and the different variables that are in effect involving acceleration. Acceleration is the rate at which velocity changes so a change in velocity is essentially a change in acceleration. An object moving in opposite direction has negative acceleration and an object with constant velocity has no acceleration. Mr. Blake demonstrated acceleration by throwing a pen, the pen went fast, slow, stop, slow fast as it traveled into the air and back into his hand. Gravity is always acting upon the object which causes the object to slow down and eventually stop at its highest point, then the object's velocity and acceleration increase as gravity pulls it back to Earth. This example made me think of a roller coaster, the car moves up fast then slow until it stops then the car moves slow to fast again as gravity increases the car's velocity and acceleration. 

 http://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Millennium_Force1_CP.JPG/220px-Millennium_Force1_CP.JPG

Posted by at

2 comments:

  1. tom sullivanJune 19, 2012 at 8:05 AM

    I thought it was very creative that you used a roller coaster as your example! I did not think of it but its a really good example and it helped the lesson make sense, thanks!

    ReplyDelete
  2. Dragon TempestJune 19, 2012 at 8:26 AM

    You have an interesting example. Unlike a majority of your peers who used a picture of our brave classmate rolling to his doom, you went the other way. Kudos to you. Also, it seems that you're understanding these concepts very well. I even learned something from your blog.

    ReplyDelete

Subscribe to: Post Comments (Atom)