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

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

2. It is the degree of hotness of a body.

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

4. It is a term in physics that describe how much heat is added to a substance to raise its temperature by 1^oC

5. Wet clothes dry in sun due to the:

6. The melting point of ice at normal atmospheric pressure is called ___________

7. The S.I unit of heat is:

8. The co-efficient of volume expansion of liquids is:

9. The amount of heat needed to convert a substance from liquid to gas is called________

10. Which statement is NOT true for boiling?

11. Salty water evaporates:

12. Joule per Kilogram per Kelvin (J kg^-1 K^-1) is the S.I unit of:

13. Which statement is true for evaporation?

14. Amount of heat required to raise the temperature of 1kg of a substance through 1^oC is called:

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

16. Which statement is NOT correct?
The rate of evaporation increases with:

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

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

19. The heat of fusion for water at 0^oC is approximately:

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