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IA camper rubs a match on a gritty surface.
IIThe match is then used to ignite a pile of wood kindling, creating a bonfire.
IIIWhile standing by the bonfire, the camper senses that the part of his body facing the fire is warm while his backside remains cool.
IVAnother group of campers across the lake spots the bonfire.

Which of the above describes a conversion of mechanical energy to heat?

Which of the above describes a conversion of chemical energy to heat?

Which of the above describes a conversion of heat to radiant energy?

2006-12-12 03:19:33 · 3 answers · asked by Anonymous in Science & Mathematics Physics

3 answers

I is an example of conversion of mechanical energy to heat
II is an example of conversion of chemical energy to heat
III and IV are both examples of conversion of heat to radiant energy, since
1) the camper feels heat radiation, and 2) the other group SEES the radiation given off by heat.


Addendum: frank r is right

2006-12-12 03:28:16 · answer #1 · answered by Scythian1950 7 · 0 0

.a camper rubs a match on a gritty surface answers all your questions.

2006-12-12 11:51:16 · answer #2 · answered by frank r 1 · 0 0

this doesnt belong :IVAnother group of campers across the lake spots the bonfire"
otherwise they are in order

2006-12-12 11:23:01 · answer #3 · answered by ?¿Will¿? 1 · 0 0

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