ICSE Class 10 Physics 2015 Solved Paper
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Question : 12 of 74
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State the energy changes in the following while in use :
(i) Burning of a candle.
(ii) A steam engine.
(i) Burning of a candle.
(ii) A steam engine.
Solution:
Energy changes :
(i) Burning of a candle : Chemical energy to light and heat energy.
(ii) Steam engine : Chemical energy of coal first changes to heat energy of steam and then heat energy changes into mechanical energy.
(i) Burning of a candle : Chemical energy to light and heat energy.
(ii) Steam engine : Chemical energy of coal first changes to heat energy of steam and then heat energy changes into mechanical energy.
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