What is the science behind the rubber band car?

Once the rubber band is released, the polymer chains in the rubber band want to return to their natural, wrinkled state. This releases the rubber band’s potential energy, converting it into the kinetic energy that powers your car. Kinetic energy is the energy of motion; any moving object is using kinetic energy.

How do you make a rubber band car go further?

Turn the axle several times. You’ve given the rubber band potential (stored) energy. When it unwinds, this potential energy is transformed into kinetic (motion) energy, and the axle spins. The more you wind the rubber band, the more energy is available for your car’s wheels—and the farther and faster your car goes.

Why does the car stop where did the energy go?

The most common type of braking is a mechanical brake which inhibits motion through friction brake pads. A mechanical brake applies a friction force to convert the kinetic energy of the vehicle into thermal energy which then dissipates into the atmosphere.

How does a car use potential energy?

At the top of the track, the car or truck has potential energy. When you let the vehicle go, gravity (a type of force) allows that potential energy to transfer to kinetic energy. This form of kinetic energy is called gravitational. Adding washers changes the weight and mass of the car.

What do you need to make a rubber band car?

YOU WILL NEED:

  1. Craft Popsicle sticks.
  2. Mini craft sticks.
  3. Rubber bands.
  4. Heavy screws or bolts.
  5. Large plastic bottle caps.
  6. Wooden skewers.
  7. Straws.
  8. Hot glue gun.

How do you make a balloon racer car?

Procedure

  1. Put your car down on a flat surface and give it a good push.
  2. Tape the neck of the balloon around one end of the other straw.
  3. Cut a small hole in the top of the water bottle, just big enough to push the straw through.
  4. Push the free end of the straw through the hole and out the mouth of the bottle.

What will happen if your brakes stop your wheels before your car’s kinetic energy has been absorbed?

If this happens, your brakes will stop your wheels before your car’s kinetic energy has been absorbed. When this happens, your car will keep moving, and your wheels will skid.