I have to do a balloon powered race car for my science class and I need some ideas of what materials I can use that would make it go fast, but stay on the ground.
Rules:
* The car must be powered by 1 balloon
* You can build the car out of anything
* It must have at least three wheels. Wheels are defined
as anything that is round and goes around.
* The wheels CAN NOT be wheels from a toy car. They
must be made out of something that was not originally
meant to be usedas wheels.
* The car may not leave the ground
Thank you so much for anyone that gives me ideas. I really appreciate it!
2007-02-02 12:10:35 · 4 answers · asked by miss pochacco 3 in Science & Mathematics ➔ Physics
Lots of hot air.
2007-02-02 12:44:36 · answer #1 · answered by confused 3 · 0⤊ 0⤋
Make the car out of balsa wood. Always used for the cub scout gravity driven cars, flying model rockets & planes. Somewhat strong yet very lightweight.
If you do 3 wheels have the third one in the back. I had a recumbent that was like that, rear wheel had disc brakes, very stable.
You didn't say what size the car had to be so I will suppose it could be as small as 1:24 scale. Maybe make the wheels out of pressed aluminum foil (pressed under several heavy books).
2007-02-02 12:23:15 · answer #2 · answered by cmdruser 5 · 0⤊ 0⤋
Use a plastic bollte for the body bc then you can put the balloon in the bottle and it will not mess with your aerodynamics. You could use coke bottle lids as the wheels.
2007-02-02 12:16:52 · answer #3 · answered by marktron_3000 2 · 0⤊ 0⤋
try using a light weight toy car case weighed down at the front and a bit at the back with tiny little metal cylinders for wheels with a toy car wheels inside them so that they have decent spokes and the right sized little hole for the metal rod
2016-05-24 06:34:44 · answer #4 · answered by ? 4 · 0⤊ 0⤋