Sunday, December 9, 2012

Week 13 Reflection

This week we learned about acceleration.  We dropped things off of the roof of the science building to demonstrate this.  We also took notes on the many aspects of acceleration and reading its graphs.

We learned that acceleration is the change in velocity in intervals of time.  We drew an acceleration graph that showed the slope curving up.  It represents a positive change in velocity for the movement of an object. 

We also learned the equation to measure acceleration.  You plug in everything that you know, such as the time, initial and final position, initial/final velocity.  Then, you solve and get acceleration on one side of the equation and it's number on the other side. 

To demonstrate acceleration, we went on to the roof of the science building and dropped things off of it.  We dropped tape recorders, cell phones, DVD players and even a bowling ball off of the roof.  This was all to demonstrate that many objects fall at a constant, and the same, velocity.  So, they will hit the ground at the same time.

I get what acceleration is and how it is used to describe objects change in velocity.  This weeks demonstration was the best so far and it was alot of fun.  Plus, I learned from it too.

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