Question

mention three examples which show that friction produces heat.​

Answer 1

Answer:

Explanation:

Hey mate here is ur ans...

*By rubbing hand we can produce heat.

*By rubbing two stones against each other produces heat.

*By rubbing the matchstick with the matchbox produces fire.

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Answer 2

3 examples of friction producing heat are:

• Rubbing of hands: People rub their hands together in winter to make their hands warm and counter the cold. This happens because of the friction produced on the surface of our hands while rubbing.
• Burning of tires: Sometimes the tires of a vehicle give a smell of burnt rubber after being driven at high velocities. This happens because of the actual heat that is produced because of the friction between the tire and road surface. Also, burnouts, which are done as a sport by drag racers, produce real smoke due to the heating of tires.
• Friction welding: It is a type of welding in which the ends of the metal are rubbed against each other at a high frequency so that it melts in that small area and then is left to cool down.