Diyvehiclerepair
Materials
- Plastic bottle.
- Four plastic bottle caps.
- Wooden skewer.
- Two straws.
- Balloon.
- Tape.
- Scissors or sharp knife (Have an adult use or supervise your use of this tool.)
- An adult helper.
What makes a good balloon car?
Some of the things that slow balloon cars down, that you have to overcome, are their own weight, air resistance, friction, and inefficient use of the air escaping the balloon. Reducing weight, minimizing drag, cutting friction and improving nozzle air flow will all help make your balloon car go faster.
How do balloon cars work?
When you blow up a balloon, set your racer down and then let it go, the escaping air from the balloon rushes out of the straw. This is your car's propulsion system. ... As the air flows from the balloon, the energy changes to kinetic energy (or the energy of motion). The moving balloon-powered car uses kinetic energy.
How far can a balloon car travel?
All cars should travel in a straight line. All cars will use only one 9-inch balloon to power it. Car should be capable of traveling at least 4 Meters.
