Question

FILL IN THE BLANKS
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

Answer:

1. Temperature

2. Expands

3. Water flow

4. Conducters

5. Temperature

6. Metal

7. Bad conducter of heat

8. Consuction

9. Thermometer

10. Thermal energy

11. 100°C

12. Radiation

13. Kink

14. Bakelite

15. Convection

Explanation:

Hope it help

Answer 2

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