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

Question

a
Mechanical advantage
b
Efficiency
c
The number of revolutions the chain needs to do around the gears
d
Friction

Answer 1

The correct answer is d) Friction. When oil is applied to bicycle chains or chainsaws, it acts as a lubricant, reducing the friction between the moving parts. Friction is a force that slows down the motion of objects in contact with each other, and it can negatively affect the efficiency and performance of machines. By reducing friction, oil enables the chains to move more smoothly and with less resistance, allowing the machines to work better and more efficiently. Less friction also helps prolong the lifespan of the chains and prevents excessive wear and tear.

Answer 2