Question

Why does oiling the-axles of a bicycle make the bicycle move more easily?

Answer 1

Answer:

Because oil act as a lubricant and hence reduce the friction

Answer 2

Oil reduces friction

Explanation:

Friction is a phenomenon which resists motion when an object is rubbed against another. Friction is reduced if we want to increase the speed of motion. Contrarily, friction needs to be increased in case where you want to reduce or control the speed of motion.

Using lubrication is one way to reduce friction. Lubricant is an substance that will occupy the space between two moving parts, so that the parts don't rub against each other with heavy friction. So the movement is much smoother and easier in the presence of lubrication. Oil is the most commonly used lubricant.