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CP Science 9
18 October 2011
The mousetrap racer making was fun. Our mousetrap racer did ok. Our final design changed a lot compared to how it was in the beginning. The best and worst of our mousetrap racer was a lot different. I would do a lot of our mousetrap racer over again. I would give myself an ok grade. My racer did well.
Our final design changed a lot. Instead of a string to turn the front wheel we decided to have a gradual turn based on the wheels angle. Also we had to change how the front wheel was set because it rubbed the wood. We had to cut a hole in the wood to fit the wheel. Also we had to extend the lever arm out farther for greater speed. Also when we tried to get it to ggo it wouldn’t so we had to put a hole in the back axle to hold to string. Next we added two smaller hoojks in the front so wthe wheel doesn’t jiggle. Finally when we got it to go we had to adjust the front wheel for a better turn.
Also the friction was reduced in the front for faster along the ground, and we gave more friction on the back wheels so it didn’t slip. We also had a less amount of friction on the back axle so the string didn’t snap.
Our first ideas of the car changed a lot compared to what it was. Now it works and we changed the design idea to work better, and the friction was reduced a lot and the potential aand kinetic energy our stored and realeased with a better lever arm.
The snap of the mousetrap becomes kinetic energy after its let loose. It starts as potential energy. Then it goes to kinetic energy half way through the cycle then at the end it is fully kinetic energy. Also with the longer lever arm it changes slower so it has more speed.
Article posted October 25, 2011 at 09:31 AM •
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