Thermodynamics MCQ Questions and Answers Quiz

11. Mechanical equivalent is associated with:

  1. Newton
  2. Kelvin
  3. Joule
  4. Boltzmann

12. A silver tea spoon is placed in a cup filled with hot tea. After some time, the exposed end of the spoon becomes hot even without a direct contact with the liquid. This phenomenon can be explained by:

  1. Thermal expansion
  2. Conduction
  3. Convection
  4. Radiation

13. The process of heat transfer from object to another because of molecular motion and interaction is called:

  1. Convection
  2. Conduction
  3. Radiation
  4. Induction

14. When we touch a piece of metal and a piece of wood that are placed in the same room, the piece of metal feels much colder than the piece of wood. This happens because of the difference in:

  1. Specific heat
  2. Temperature
  3. Density
  4. Thermal conductivity

15. The process of heat transfer by the movement of mass from one place to another is called:

  1. Convection
  2. Conduction
  3. Radiation
  4. Induction

16. Which mechanism of heat transfer is involved in heating a pot with water on a stove?

  1. Convection
  2. Conduction
  3. Radiation
  4. Induction

17. Which mechanism of heat transfer is involved in heat flow from Sun to Earth?

  1. Convection
  2. Conduction
  3. Radiation
  4. Induction

18. If the absolute temperature of a radiating object is doubled, by what factor does the rate of energy emission change?

  1. 2
  2. 4
  3. 8
  4. 16
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