Multiple choice

Which of the following is the underlying principle of the steam engine?

  1. Transformation of heat into mechanical energy

  2. Transformation of heat into electric energy

  3. Transformation of electric energy into heat

  4. Transformation of mechanical energy into heat
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A Correct answer
Explanation

James watt framed the idea that heat energy can be transformed into other forms of energy. The heat energy can also be generated from other various form of energy. Keeping these ideas in his mind, he used the chemical energy of fuel, like coal, to produce steam to rotate the shaft of the engine. In other words, we can say that the heat energy is converted into mechanical energy.

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