a pulling force that causes rotational (or spinning) motion

a good type of friction needed on speed cars to keep the drive wheels from spinning without slipping

is inertia in motion; the greater the velocity and mass, the greater the momentum; reduced velocity or reduced mass will result in reduced momentum

the property of an object to resist change to its spinning motion

(Action and Reaction) For every action there is an equal and opposite reaction

energy that is stored (as in the mousetrap spring prior to releasing it)

energy of work, energy that is accomplishing work, energy of motion

thin brass tube that transfers energy from the mousetrap to the string wound around the axle

metal sleeve put onto the axles between the wood frame used to reduce friction

the metal cylinder that holds the wheels to the frame and spins in those holes in the chassis/wood frame

the wood piece that makes up the body of your Racer