|THE INTERNET PLASMA PHYSICS EDUCATION EXPERIENCE|
Stored Energy Home Experiment CalculationQUESTION: How hot will 2 cups of water get from 2 minutes in a microwave oven?
If you know the units of conversion factors, and that anything divided by itself is equal to 1, with a little common sense you can figure out a lot.
(If you want more explanation of this technique, here's a simple example of canceling units.)
Here are your facts:
Joules Specific Heat of Water = 4180 ----------- Kg - Deg. C Power of Microwave = 750 Watts Joule Watt = ------ Second Weight of Water = 0.454 Kg Time of Heating = 120 Seconds
Write an equation so the units cancel and you are left with degrees C.
Simple explanation of canceling the Units.
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