Most cutting devices use the principle of:the inclined planethe wheelthe leverThe distance form the turning axis to the point of contact is called the:lever armturning pointtorque pointWhat force opposes motion and has a great effect on a mouse trap cars performance.frictiongravitybearingsEnergy that is stored is called:kinetic energypotential energystable energyWhat is the approximate speed of a mouse trap hammer?50 mph85 mph70 mphA car built for distance requires a ____________ lever arm.longstableshortIn general the longer the length of the plan the _________ force is needed to move the object.lessmoreA compressed spring of a mouse trap car is an example of ____________ energy.kineticstablepotential What is the sleeve called that is used to give the axle a smooth surface to rub against.wood dowelbearingbushingA twisting force.compressiontensiontorque Loading...