Question

1.Thermal energy flows between objects due to difference in___________ 2.When a liquid is heated it___________ 3.Convection current gives rise to ___________ 4.Dark colours are good___________ of heat. 5.The degree of hotness or coldness in a substance is called ___________ 6.___________ is a conductor of heat. 7.The thermos flask is made up of double walled glass vessels because glass is a ___________ 8.In solids transfer of heat can take place by ___________ 9.Mercury is a liquid metal in ___________ 10.The form of energy that flows from hot object to a coldobject is called ___________

11.The boiling point of water in the Celsius scale is

___________

12.The transfer of energy between object that are in physical

contact is by ___________

13.The ___________ in a clinical thermometer prevents

backflow of the Mercury into the bulb.

14.The handle of cooking utensils are made of material that

are___________

15.The vacuum in a thermos flask reduces the heat loss due

to___________​

Answer 1

Answer:

1. temperature

2. expands.

3.  breeze.

4. absorbers

5. temperature

6. copper

7. poor conductor of heat

8. conduction

9. liquid form at room temperature.

10. heat

11. 100 degree Celsius.

12. radiation.

13. kink

14. insulator

15. convection