Use the roll-down test to identify points of resistance and aerodynamic drag. Weigh each car to determine it's total weight. Time each car's top speed. Time each car's acceleration. Optimizing the Solar Car Optimization should occur after the cars have been assembled and tested.
Optimization refers to the process of fine-tuning each car to achieve it's top performance.
Using the test results, students should look for areas where their cars need improvement. The two terminals on the solar panel will twist and break if not taped. Tape the leads and then fold the leads in half towards the end of the panel. Leave a small part of the leads exposed beyond the panel to allow the alligator clip to be attached. Use two size 19 rubber bands to secure the panel around the body of the car and chassis.