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How does a mousetrap powered car work?

By Michael Gray

A mousetrap powered car is a vehicle that is powered by the energy of a wound-up mouse trap’s spring. Once the drive axle and mouse trap are released the string is pulled from the drive axle by the mouse trap and this causes the drive wheels to rotate.

What energy does a mouse trap car use?

The mousetrap storespotential energyin the form of the spring. That potential energy is converted into kinetic energy in the form of the arm rotating forward. The arm pulls on the wound-up string, which turns the drive wheel dowel, which is connected to the wheels, which makes the car drive forward.

How far does a mousetrap car go?

25.5ft
The average distance the rattap car went was 18.6875ft and the average distance the mousetrap car went was 25.5ft.

What is the key to a quick start in a mousetrap car?

Lever Arm Basics Shortening the length of the lever arm increases the pulling force but decrease the amount of string that can be pulled from the drive axle. Understanding this basic concept is the key to building a successful mousetrap powered vehicle.

What makes a mousetrap car go faster?

A speedy mousetrap car will have smaller wheels (faster acceleration), a shorter lever arm (increased torque, but smaller travel distance), a larger axle (increased acceleration) and will generally be smaller to decrease air resistance.

Is friction important for a mousetrap car?

Controlling friction is your number one goal to building a winning and record-setting mousetrap powered vehicle. Because the number of moving components increases the friction point look for ways to simplify the design as much as possible.

Is it better to have a heavier or lighter mousetrap car?

A heavy mousetrap vehicle will required more pulling force than a lighter mousetrap vehicle in order to achieve an equal acceleration. Lighter mousetrap vehicles will require less energy at the start and can use longer lever arms for more pulling distance.

Why is my mousetrap car not going straight?

If your mousetrap car does not travel straight energy is also being wasted to over come the force of friction turning the vehicle’s wheels. If a mousetrap vehicle is not traveling straight then there is one reason and one reason only: the front and rear axles are not parallel to one another!

What types of friction affect a mousetrap car?

A moving mousetrap car is affected by two type of friction: airfriction and bearing friction. Airfriction is a large factor only with cars that are moving fast and is nearly negligible for slow-moving distance cars; therefore, in this lab you will only take bearing friction into consideration.

What will make a mousetrap car go faster?

Making The Vehicle Faster

  1. Thicken the axle: Wrapping some tape radially around the axle or adding a spool. It may be surprising as to how much faster this makes the vehicle.
  2. Use smaller wheels. They will require less force to complete a rotation.
  3. Make the vehicle lighter.

Is it better to have a lighter or heavier mousetrap car?

What are the 2 types of friction that affect the performance of your mousetrap car?

A moving mousetrap car is affected by two type of friction: airfriction and bearing friction.