Thermal Properties of Matter – Online MCQs Test – Physics 9th

1. Thermal energy transfer required to change a solid into liquid without changing its temperature is called ___________

2. Thermal energy transfer required to change a liquid into gas without changing its temperature is called _____________

3. If “β” is, the coefficient of volume expansion and “∝” is the coefficient of linear expansion than:

4. Wet clothes dry in sun due to the:

5. Which one is correct to convert temperature from Celsius scale to Fahrenheit scale?

6. It is used to control temperature of ovens, irons water heaters, refrigerators, air conditioners and so on.

7. Thermal energy transfer required per unit mass to increase the temperature by 1^oC or 1K is called ____________

8. The S.I unit of heat is:

9. Thermometer is a device, used to measure:

10. The Heat of vaporization for water at 100^oC is about:

11. A fixed temperature at which a pure liquid boils is called ________

12. Boiling point of water is:

13. Rate of evaporation of a liquid can be increased by _____________

14. Linear thermal expansion of a solid depend upon ____________.

15. Evaporation can occur at ____________

16. Heat capacity depends upon the nature of material

17. Which one is correct to convert temperature from Celsius scale to Kelvin scale?

18. Which statement is true for evaporation?

19. Volatile liquids have:

20. Evaporation causes: