1. Which of the following determines the direction of heat flow between two bodies?
2. A metal lid becomes loose when heated because:
3. Which of the following substances has the highest heat capacity?
4. Why does a wet cloth dry faster on a hot day?
5. Which of the following is used to measure humidity?
6. Which of the following changes state from gas to liquid?
7. Why do black surfaces get hotter in sunlight?
8. Which of the following is an example of good heat insulation?
9. When a gas is cooled, its volume generally
10. Which of the following is used to detect heat radiation?
11. Why does steam cause more burns than boiling water?
12. Which of the following is an example of latent heat?
13. Which of the following materials expands more on heating?
14. Why are double-walled vessels used to store hot liquids?
15. When temperature increases, viscosity of liquids generally:
16. Which of the following is used in solar cookers?
17. Why does a glass tumbler crack when hot water is poured suddenly?
18. Which of the following is the coldest temperature?
19. Which factor affects the rate of evaporation?
20. Which of the following is an example of conduction in daily life?
