What happens when you rub your hands together vigorously?

Answer 1

Yes, rubbing your hands together makes friction. This friction makes heat.

Answer 2

When you rub your hands together, the friction forces caused by the motion create mechanical energy, which is converted into heat energy.

Answer 3

The resulting friction warms up the hands. if the vigorous rubbing continues, the skin of the hands will be rubbed down, flake off, and bleeding will eventually occur.