Disadvantages of Friction are given below:
- The unnecessary heat produced by friction leads to wastage of energy.
- The friction slows down the motion of moving objects.
- The friction between tree branches causes forest fires
- Produces noise in machines
- Reduces the efficiency oh machines and its parts
- Huge of amount of money is spent on oiling and greasing of that machinery parts which get damaged under friction
- The surface loses its smoothness