1. Define heat with its S.I unit.
2. Write two factors that effect heat.
3. Define 1 calorie and 1 joule heat. Write relation between calorie and heat.
4. Why is there gap in between track of rails?
5. State the principle of thermometer.
6. Which instruments measures heat?
7. Define thermal expansion.
6. Define temperature with it's unit and relation between them.
7. Define thermometer. Why is mercury used as thermometric liquid.
8. Why is alcohol used as thermometric liquid.
9. Differentiate between clinical and laboratory thermometer.
10. Kink is present in clinical thermometer, why?
11. Which thermometer is used in cold region, why?
12. Which thermometer is used to measure the temperature of boiling water.
13. Define specific heat capacity. What is it's value for water?
14. Define and prove heat equation.
15. Write the relation between heat gained and lost by an object in ideal condition.
16. What is the relation between specific heat capacity with heat.
17. Why is water used as cooling agent?
18. Why is water used in hot bags?
19. Why is desert very hot during day and very cold during night?
20. What is normal human body temperature?
21. Well water is warmer during cold days, why?
22. Water kept in earthen pot is cold, why?
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