i need to build a self powered car using only household materials
it can be powered by things like rubber bands and balloons.
2007-03-30 05:30:26 · 6 answers · asked by drummaboy31 3 in Science & Mathematics ➔ Engineering
has to travel one meter in a classroom without making a mess
2007-03-30 05:52:32 · update #1
Vinegar and baking soda.
Can be messy, but it will work.
If you want more power use mentos and Diet coke.
2007-03-30 05:38:51 · answer #1 · answered by uisignorant 6 · 0⤊ 0⤋
A few more design parameters would be handy. How far does the car have to travel and under what conditions? Does speed matter?
Look for things around the house that can store energy and then release it in a controllable manner - pen springs, weights, mouse traps, elastic materials. For real fun, you might consider a less controllable energy release such as the famed Diet Coke and Mento energy source.
Design a method to convey the stored energy to a drive mechanism. A string wrapped around an axle or airflow through a nozzle would be examples.
Finally, design something that can carry the power source and the drive mechanism. Try to keep the total weight low.
2007-03-30 12:41:35 · answer #2 · answered by dogsafire 7 · 0⤊ 0⤋
I think I had a project like this at school. I used mousetraps, spools of thread, and rubberbands. Other stuff could be used too if they are going for looks like extra cardboard. Household items could almost be anything. I know there are some liquid compounds that cause reaction/explosions....Like they have those pop bottle bombs and volcano eruption stuff (baking powder and vinegar). I hope some of them help. Good luck!!
2007-03-30 12:47:18 · answer #3 · answered by lucky2bear 2 · 0⤊ 0⤋
You could try using a balloon. Let the air flow out of the balloon through a converging diverging nozzle to get more thrust.
2007-03-30 12:51:16 · answer #4 · answered by Pete 4 · 0⤊ 0⤋
Self Powered??? That will be a first, you could use Solar power, but that comes from the sun or strong light. Dont think we have built anything that is self powered yet, well maybe nuclear plants.
2007-03-30 12:35:32 · answer #5 · answered by Anonymous · 0⤊ 0⤋
u can use a rubber band or if you have lots of patience you can make it out of ropes( the principle of a top it'll spin in one way the reload in the other and so on but let me warn you it takes for ever and its hard steam if depending on the size of tha care you can make a fire under it steam will work fine making it
2007-04-05 17:36:05 · answer #6 · answered by cash 2 · 0⤊ 0⤋