Monday, June 17, 2013
Unit 3 Part 1
Today, we finished Unit 2 and began Unit 3. Unit 3 has started off as a continuation of kinematics like the previous 2 units but this time contains "acceleration versus time" graphs. We are now learning the full relationships between position versus time, velocity versus time, and acceleration versus time. Acceleration is defined as "any change in velocity" changing my whole perspective on the concept of acceleration. This means that slowing down, increasing speed, and even changing directions ca be defined as acceleration. In the activity we did today, we took two different types of wheeled objects: a board with wheels and a skateboard as shown in the picture below. We then positioned timers across as 45 meter sloped straightaway and graphed the data for 9 different positions going down the hill giving us an exponential graph shape.
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I like that you stated all the possible plausible causes for acceleration. It totally changed my personal definition of the word as well. Your post was also very to the point.
ReplyDeleteYeah, just like Caitlin said! I thought that it was a good reminder to understand that just because you're accelerating doesn't mean you're actually going faster. That was a weird concept for me to grasp when first learning about it, but this was well explained.
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