Question

Question 2
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 cold object 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

Explanation:

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

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Answer 2

Explanation:1.temperature2. expands3. breeze4. absorbers5. temperature6. Copper7. poor conductor of heat8. conduction9. liquid form at room temperature10