what are the disadvantages of friction
Answers
Answer:
1. The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.
2. Due to friction we have to exert more power in machines.
3. It opposes the motion.
4. Due to friction, noise is also produced in machines.
5. Due to friction, engines of automobiles consume more fuel which is a money loss.
6. Machine efficiency is decreased: energy input is lost to heat
7.Forest fires are caused due to friction between branches of trees
Explanation:
Answer:
Friction is called as necessary evil
Explanation:
It means that friction is both needfully and has disadvantages.
The disadvantages are
They cause tear and wear in machinery parts.
They loose our energy
In smooth surfaces or places where irregularities are less people can slip
They cause forest fires