2nd October 2019


How does a mouse trap car work?

By winding the string around the axle the mouse trap's spring is stretched and now you have your stored energy. As the mousetrap car is released the mouse trap pulls the string off of the axle causing the wheels to turn and off the vehicle goes.

Accordingly, how do you reduce friction in a mousetrap car?

  1. If the string is just wrapped around the axle, the car may barely move.
  2. Use the longest lever available to extend the mouse trap arm as far as possible.
  3. Reduce friction on the axle by minimizing the surface area of the support that contacts the drive axle.
  4. Reduce shock by using a bit of sponge as simulated cheese.

What is the axle of a mousetrap car?

An important part of a mousetrap vehicles propulsion system is the axle hook. Learn how to make and attach an axle hook in order to propel a mousetrap racer. A mousetrap powered car is a vehicle that is powered by the energy of a wound-up mouse trap's spring.
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