Solar Race Cars
Elizabeth F. OKeefe
Whitfield Middle School
St. Louis, Missouri
Solar-powered cars, assembled by students, transform the school sidewalks
into a mini racetrack. As cars zoom past a photogate attached to a laptop
computer, the computer calculates the time that each car travels between
specified points. Students can then calculate the speed of the car. Students
add more solar cell batteries to the car wired in a series circuit, and measure speed. Solar
Race Cars helps students answer the following questions about solar
energy: Will the speed of the car increase proportionally with additional
batteries? What happens when the cells are wired in parallel circuitry?
Will season affect race car speed?
Download Solar Race Cars: solar.pdf