What forces act on a mousetrap car?
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.
What are two types of friction that affect a mousetrap car?
A moving mousetrap car is affected by two type of friction: airfriction and bearing friction.
What makes a mousetrap car fast?
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. Use a longer pole/stick attached to the mousetrap’s hammer.
How does a mousetrap car function?
A mousetrap car uses the stored energy of a mousetrap spring to generate forward motion. In competitions, the goal of the mousetrap car is to achieve as much forward motion as possible, on a flat surface and/or on an inclined surface. In other words, the goal is to maximize the distance traveled on both these surfaces.
How does a mousetrap kill?
Traditional snap traps, also known as spring loaded-bar mousetraps, are commercially available and widely used. Snap traps are placed along pathways rodents travel, and an attractant such as food or nesting material can be used. When the spring mechanism is triggered, a metal bar snaps and kills the rodent.
How does friction affect a mousetrap car?
The axle spins while the body of the car does not, creating friction. This friction adversely affects the motion of the vehicle, slowing the spin of the axle during and after the release of the mousetrap. The greater the friction between axle and body, the shorter the distance of travel.
How do you reduce friction in a mousetrap car?
Use a small axle to reduce friction. A large diameter axle will contact the bearing farther away from the center of the axle than a small diameter axle will. The farther from the center a force is, the more effect it has.
How does a mousetrap car adapt to distance?
Use thin, light wheels. Thinner wheels have less friction and may go farther if the distance is what you want or need with your mousetrap racer. It’s also important to take the weight of the wheels themselves into account — any unneeded weight will ultimately slow your car down or lead to added friction.
Where is one place where friction is beneficial to the racing of mousetrap cars?
Axle Points The number one point of friction on any mousetrap car is where the axle system comes in contact with the frame of the vehicle. In most cases an axle will be in direct contact with the frame and there is a lot that can be done to decrease the friction at this contact point.
What class of lever is used in a mousetrap car?
second
When designing a trap car What are the 2 variables that truly determine performance?
In general, mousetrap competitions have two categories, speed and distance. If you want to optimize for speed, you’ll want to design a car that exerts as much force/rotation as possible on the wheels as fast as possible.
How does a mousetrap car use torque?
makes your car go! – In your mousetrap car, the snapper arm applies a force to the drive axle through the pulling string. This in turn causes a torque to be produced around the q p drive axle.
What are the parts of a mousetrap car?
The six simple machines are: the inclined plane, the wedge, the screw, the lever, the wheel and axle, and the pulley. Understanding the principles of these simple machines will help you design your mousetrap vehicle.
What can I use as an axle for a mousetrap car?
A mousetrap car can be made from cardboard or balsa wood with CD’s for wheels and axles of wood or brass tubing. Power to drive the wheels is provided by a mousetrap to which a wand and string is attached to the snap arm.
How do you make a mousetrap car go backwards?
Re: Reversing Direction The standard and easiest way is to have a peg in the axle. When you wrap the string around, you first do it in one direction, and then around the peg and then in the other direction. The more difficult way to do it is to have one mousetrap push it forwards and the other go in the reverse.
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.