2007-03-06 21:48:37 · 6 answers · asked by Pratibha P 1 in Science & Mathematics ➔ Physics
Energy from two sources: Kinetic energy from the hammer being converted into heat energy (plus sound), friction in the movement of the molecules of the nail as they're moved against each other. Most of the heat's from the direct impact of the hammer. Try hammering a flat sheet of metal and then feeling how warm it is where you're hitting it.
2007-03-06 22:05:41 · answer #1 · answered by Testaco 3 · 0⤊ 0⤋
The velocity (striking speed) of the nail, combined with friction of the wood grain, and natural, or a typical metal nail is a heat conductor.
2007-03-06 22:03:46 · answer #2 · answered by Anonymous · 1⤊ 0⤋
the friction of the nail against the wood and vice versa. same idea behind rubbing ur hands together real fast to get them warm
2007-03-06 21:53:41 · answer #3 · answered by carmen 5 · 0⤊ 0⤋
Friction my dear Watson, friction. Why do your palms become warm when you rub them against each other? Because of friction. The case which you have mentioned is a similar one.
2007-03-06 22:03:02 · answer #4 · answered by Govinda 3 · 0⤊ 0⤋
Friction.
2007-03-06 21:55:53 · answer #5 · answered by gone 6 · 0⤊ 0⤋
friction
2007-03-06 21:52:31 · answer #6 · answered by ThatLady 5 · 0⤊ 0⤋