Reply
Tue 14 Aug, 2012 07:05 pm
Is a light bulb matter or energy???
@Kim1056,
It’s matter that uses energy converting electrical power to heat and light
@dalehileman,
Power is energy per time--energy usually has units of ergs or ft-lbf. Power has units of ergs per second and ft-lbf per second (watt and horse-power).
Rap
@Kim1056,
According to E=mc^2, I'd say it's potentially both....
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