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Challenge: Rubber Band-Powered Car
Recommended for Years 5 and up
Design thinking task where students are challenged to make a rubber band-powered car
Here are two examples of rubber band-powered cars to get you started
The Science!
When you stretch a rubber band it stores potential energy. Specifically, it stores elastic potential energy—the type of energy stored when a material is deformed (stretched in this case). When you release it all, that stored energy must go…somewhere! For example, if you launch a rubber band across the room, the potential energy is converted to kinetic energy (the energy of motion).
By attaching your rubber band to a simple machine – the wheel and axle – you can build a rubber band-powered car.
It will take a little engineering, and a lot of testing to get your vehicle working. Don’t get discouraged if it doesn’t work the first time – inventors keep going and keep trying!
Extra Challenges:
• Make your car go faster
• Make your car go slower
• Can you make a different vehicle? (think boat, bike, or plane)
• Can you power your car differently? Try using wind or electric energy!
• Redesign your vehicle for a different purpose, like carrying your slippers!
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