Question

Oiling bicycle chains or chainsaws is efficient at making the machines work better because the oil reduces _________________________. (1 point) Responses Mechanical advantage Mechanical advantage Friction Friction The number of revolutions the chain needs to do around the gears The number of revolutions the chain needs to do around the gears Efficiency

Answer 1

Oiling bicycle chains or chainsaws is efficient at making the machines work better because the oil reduces **friction**.