For each of the following scenarios determine whether energy is being transforme
ID: 3893948 • Letter: F
Question
For each of the following scenarios determine whether energy is being transformed to or from thermal energy due to work , heat or neither (there is no change in thermal enrgy) Explain your reasoning
a. The temperature of an incandescent light bulb filament rises to 5000K when the light is turned on.
b. The lamp shade of a reading lamp gets warmer when the light is turned on.
c. Water is boiling at a constant temperature of 100 degrees C on top of an electric stove element
d. An insulated thermos contains a mixture of ice and water at 0 degrees C
e. A bicycle air pump compresses the air in a bicycle wheel, increasing its temperature
Explanation / Answer
transformed to heat from work
transformed to heat from work
no change in thermal energy
no change
heat to work..
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