A stretched rubber band is a great source of elastic potential energy.
Elastic band car instructions.
2 straws this will be the frame of the car.
It s a thicker cardboard and will definitely hold up better.
Next wrap 2 rubber bands around each cd to make an x shape and attach the cds to the car by sliding the wooden spools onto the dowels.
Aiden has broken the wheels off of the car several times and i ve had to reglue them.
These are recycled paper staws.
Adult supervision is recommended for children under 10.
Hence the more the winds of the rubber band the faster and longer your drive.
I cut a slit in the top of the.
Rubber bands can inflict pain if mishandled.
While you can certainly use a paper towel tube for your car i chose a sturdier tube that came from a box of aluminum foil.
I ll include affiliate links to find what you need on amazon as well.
We needed two attach the rubber band to a fixed position at the front of the car.
4 toothpicks or wooden skewers.
I have also used a paper clip.
When released that energy is converted to kinetic motion energy.
Here are the items needed for your diy race car and the step by step directions for making a diy rubber band racer.
We used a craft stick for this.
This rubber band car tutorial comes right out of the pages of one of my new books rubber band mania.
Rubber bands are a convenient and effective way to teach energy transformation and this rubber band car makes that lesson a blast.
On twisting the rubber band around the axle you are storing potential energy in it that gets transformed into kinetic energy when you let it go.
Depending on the length of your car you may need two rubber bands.
A quick google search for rubber band car project yields tens of thousands of results so why reinvent the rubber band powered wheel the top results show cars with small wheels without traction or cd wheels which are difficult to attach to an axel both of.
Wrap the rubber band around the rear axle.