Hello! Recently, I conducted a very fun lab in Physics class using something called a Low-Friction Car. It looks like a rectangle with tiny wheels, but is apparently extremely expensive. If you set it on a flat surface and give it a tiny push, it will be able to move far. In this lab, my group set a ramp on a higher surface. We pushed the car down the ramp, but I'm making it sound way easier than it really was... We used an app that gave us a beat (called hocks, I think) and we used a whiteboard marker to quickly mark five dots while the car was rolling down the ramp. This was a very difficult process, and our "dots" often ended up looking like dashes which didn't provide us with completely accurate data. Anyways, we found the position of where the car was at each mark. We graphed our data and found out that it was polynomial (looks like a curved line going up). Next, my teacher told us that we would be doing the same thing again, but using a motion sensor to give us accurate data. Motion sensors are my favorite! We received a packet which showed different ways we had to use the car and the ramp. Unfortunately, my group isn't finished with that packet yet, so I will save it for a different post.
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| This is kind of what the car looked like! |
