Thursday, September 6, 2012
You really can find anything on youtube these days...
I found this video just by googling "speed and velocity song." These guys must be pretty famous with physics students; they make complicated concepts seem like something a child could understand. They really differentiate between velocity and speed. Velocity is the speed and direction an object is going whereas speed is just the distance covered in a certain period of time. These are definitely two concepts that are easy to confuse, but after seeing this video I don't think I ever will. Their song really breaks down speed and velocity into it's simplest possible definition, which really helps a lot; I feel like I understand physics so much better just from seeing this one video. Who knew that learning physics could be so much fun!
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This, as well, is a very helpful song concerning speed and velocity. We just had a test on velocity, displacement and acceleration, and even after learning it, sometimes it gets confusing to distinguish speed and velocity. I like how it emphasizes, and repeats, that velocity is speed WITH direction. The only thing I would change in this video is (at around 1 minute and 31 seconds) they say acceleration "let's go faster," when acceleration can mean speeding up OR slowing down. Maybe they could have said "acceleration, let's go faster or slow down" or something like that. Other than that, this video is great! It will help on my final exam, when I can't quite remember the difference between speed and velocity.
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