Give 12 examples showing the harmful effects of friction.
for class 8
Answers
Answer:
plz mark me as brainliest
Explanation:
Opposes the motion of a vehicle or object. Causes overheating of machines. Causes extra energy to be used.
...
Give two examples showing the harmful effects of friction
It prevents accidents by making the vehicles or objects stop.
Hammering the nail on the wall.
Pulling a cart such as bullock cart or horse cart
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.Friction between tyres and the road stop cars from skidding.
7.Friction with air causes air craft, rockets to heat up.