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Name two substances which expand on heat...

Name two substances which expand on heating.

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ICSE-HEAT-TEST YOURSELF (SHORT/LONG ANSWER TYPE QUESTIONS)
  1. Write down the body temperature of a healthy person.

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  2. What do you understand by thermal expansion of a substance ?

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  3. Name two substances which expand on heating.

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  4. Why do telephone wires sag in summer ?

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  5. Iron rims are heated before they are fixed on the wooden wheels. Expla...

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  6. Why are gaps left between successive rails on a railway track ?

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  7. A glass stopper stuck in the neck of a bottle can be removed by pourin...

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  8. Why is a cement floor laid in small pieces with gaps in between?

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  9. One end of a steel girder in a bridge is not fixed, but is kept on rol...

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  10. Describe one experiment to show that liquids expand on heating.

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  11. State one application of thermal expansion of liquids.

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  12. Describe an experiment to show that air expands on heating.

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  13. An empty glass bottle is fitted with a narrow tube at its mouth. The o...

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  14. State which expands more, when heated to the same temperature : solid,...

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  15. Name the three modes of transfer of heat.

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  16. Name the mode of transfer of heat in the solid

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  17. Name the mode of transfer of heat in the liquid

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  18. Name the mode of transfer of heat in the gas

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  19. Name the mode of transfer of heat in the vacuum

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  20. What are good and bad conductors of heat ? Give two examples of each.

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