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? 發問於 科學及數學其他 - 科學 · 1 十年前

reasons of calculate the energy absorb and the energy supply

state two reasons to account for the difference between the energy supplied by the heater and the energy absorbed by the water..???!!

唔該哂=]

好急架@v@

1 個解答

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  • 子路
    Lv 6
    1 十年前
    最愛解答

    1. heat loss to the surroundings

    2. heat capacity of the cup, or other apparatus

    3. efficiency of the heater(not 100% electricity is converted into heat)

    4. you did not wait. it take time for the water to raise temp(evenly)

    3 and 4 is not so good, 4 is the worst

    i suggest you answer 1/2/3

    資料來源: me
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