lab09 - The TAs signed the approved sketch and pricelist of...

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Procedure First, materials were obtained from the TA’s to test the potential voltage of the different materials. The lemon was squeezed to distribute the juice inside better. Two pieces of metal acting as electrodes were places inside the lemon as close as possible without them touching. A Magnesium strip and a Copper strip were the two electrodes used in the lemon. A digital multi-meter (DMM) was used to obtain the voltage produces by the lemon cell. Using one lemon cell with these electrodes lit up an LED. This was done by connecting the lemon cell and LED in a series circuit. The voltage of the LED was recorded using a digital multi-meter.
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The results of the voltage tests of the various electrodes such as Magnesium and Zinc were put up on the board by the TA's. The team then chose the strips with the highest voltage (Magnesium and Copper). A design of the power source, chemical or capacitor was created using the given electrodes. The capacitor was the more efficient design. Thus the car was then designed using the preferred power source.
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Unformatted text preview: The TAs signed the approved sketch and pricelist of the car. The care when then created and then tested. Data / Observations The lemon car achieved an average velocity of 0.43 feet per second. Although the Magnesium and Copper strips were used; which had the highest voltage combined out of all of the electrodes, the power source of the lemon car was not strong enough to earn an acceptable CR ratio. The winning team, with a CR of 14.90, had an average velocity of 0.15 feet per second. A capacitor, as the power source, was the choice of design for the ideal winning lemon car. Discussions / Conclusions The design of the lemon car won the competition. After the trial, plans were discussed on how the design could have been improved. One of the improvements was a more effiecent gear ratio. A distance of 26.49 feet placed the lemon car into 1st place. Although the final price was $2.50, one of the highest, the lemon car traveled 26.49 feet and won the competition...
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This note was uploaded on 04/08/2008 for the course EG 1004 taught by Professor Doucette during the Spring '08 term at NYU Poly.

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lab09 - The TAs signed the approved sketch and pricelist of...

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