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Give reason We wear dark coloured clot...

Give reason
We wear dark coloured clothes in winter and light coloured clothes in summer.

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ICSE-HEAT-TEST YOURSELF (SHORT/LONG ANSWER TYPE QUESTIONS)
  1. Name a liquid which is a good conductor of heat.

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  2. Name a solid which is a good conductor of heat.

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  3. Select good and bad conductors of heat from the following: copper, mer...

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  4. Why is an oven made of double walls with the space in between filled w...

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  5. Why do we use cooking utensils made up of copper ?

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  6. Why is a tea kettle provided with an ebonite handle ?

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  7. In summer, ice is kept wrapped in a gunny bag. Explain the reason.

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  8. Explain why we wear woolen clothes in winter ?

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  9. Explain why the water pipes are covered with cotton during very cold w...

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  10. Why are quilts filled with fluffy cotton ?

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  11. State the direction of heat transfer by way of convection.

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  12. Ventilators are built high up in a room. Give reason.

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  13. Why are chimneys provided over furnaces in factories?

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  14. What are land and sea breezes ? Explain their formation.

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  15. Why is the freezing chest in a refrigerator fitted near its top ?

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  16. Explain briefly the process of heat transfer by radiation.

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  17. Give one example of heat transfer by radiation.

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  18. Give reason We wear dark coloured clothes in winter and light colour...

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  19. The bottom of a cooking utensil is painted black. Give the reason.

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  20. Draw a labelled diagram of a thermos flask. Explain how the transfer o...

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