Q22. What is clinical thermometer?

 

Q23. Give two examples each of conductors and insulators of heat.

 

Q24. How does the heat travel in air?

 

Q25. What do you understand by heat?

 

Q26. What is the use of maximum-minimum thermometer?

 

Q27. One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be

(a) 80°C               (b) more than 50°C but less than 80°C

(c) 20°C               (d) between 30°C and 50°C.

 

Q28. Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?

 

Q29. Why clinical thermometer cannot be used to measure high temperatures?

 

Q30. Explain land breeze.

 

Q31. What is the concern associated with the use of mercury thermometer?

 

Q32. Explain the construction of clinical thermometer.

 

Q33. In places of hot climate it is advised that the outer walls of houses be painted white. Explain.

 

Q34. Is it possible to construct buildings that are not affected much by heat and cold outside?

 

Q35. What do you mean by maximum-minimum thermometer?

 

Q36. Why clinical thermometers range from 35°C to 42°C?

 

Q37. Discuss why wearing more layers of clothing during winter keeps us warmer than wearing just one thick piece of clothing.

 


Last modified: Thursday, 3 January 2019, 11:25 PM