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Class 11 Solar Radiation, Heat Balance and Temperature worksheet
CBSE Social Science. Insolation, heating of the atmosphere, the heat budget, the lapse rate, temperature distribution and inversion. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
Incoming solar radiation is called:
- albedo
- advection
- terrestrial radiation
- insolation
Answer
(d) insolation
- 2.
What is meant by “terrestrial radiation”?
- long-wave heat radiated by the earth
- cold air flowing downslope into valleys at night
- energy to raise one gram of a substance by 1 °C
- the share of radiation reflected back to space
Answer
(a) long-wave heat radiated by the earth
- 3.
What is the effect of altitude on temperature?
- it raises the temperature of coasts it flows past
- it lowers the temperature where it passes
- insolation and temperature fall towards the poles
- temperature falls 6.5 °C per 1,000 m
Answer
(d) temperature falls 6.5 °C per 1,000 m
Section B · short answer
- 4.
Name the factors that cause variations in insolation.
Answer
The earth’s rotation, the angle of the sun’s rays, the length of the day, the transparency of the atmosphere and the aspect of the land.
- 5.
What is meant by each? (a) inversion of temperature (b) convection
Answer
(a) temperature rising with height (b) vertical heating of the air by rising currents
Section C · long answer
- 6.
Explain how the earth maintains its heat budget, using the 100-unit model.
Answer
35 units are reflected; 65 are absorbed (14 by the atmosphere, 51 by the surface); the surface radiates 51 (17 to space, 34 to the atmosphere); the atmosphere radiates 48; 17 + 48 = 65 balances the income.
Fresh sheets for your child
In the app, every Solar Radiation, Heat Balance and Temperature sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
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