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# Important Notes : Heat Notes For SSC CGL

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Heat budget- Balance of heat between the earth and solar radiation

Terrestrial radiation-The earth radiates energy to the atmosphere in long wave form. This energy heats up the atmosphere from below.

The atmosphere is indirectly heated by the earth’s radiation.

The proportion of the incident light or radiation that is reflected by a surface is Albedo

Difference between INSOLATION and TEMPERATURE

INSOLATION

TEMPERATURE

The energy received by the earth

Intensity of heat

It is Measured in calories

Degree of hotness

Insolation is the cause
Heat energy that makes things hotter

It is the effect

Atmospheric pressure

The weight of a column of air contained in a unit area from the mean sea level to the top of the atmosphere

The value of atmospheric pressure is 76 Pascal

Pressure gradient -The differences in atmospheric pressure may be termed as pressure gradient

Frictional force-It is greatest at the surface and its influence generally extends upto an elevation of 1 - 3 km

Coriolis force -It deflects the wind to the right direction in the northern hemisphere and to the left in the southern hemisphere. It is maximum at the poles and is absent at the equator

Q. What is the solar radiation coming to Earth called?

b. Insolation

c. Sunshine

Ans-b

Q. why troposphere is the hottest part of the atmosphere?

a. It is closest to the Sun

b. There are charged particles in it

c. It is heated by the Earth's surface

d. Heat is generated in it

Ans-c

Q. Atmospheric pressure exerted on Earth is due to?

a. Rotation of Earth

b. Revolution of Earth

c. Gravitational pull

d. Uneven heating of Earth

Ans-c

a. Equatorial low pressure

b. Polar high pressure

c. Subtropical high pressure

d. Subpolar low pressure

Ans-c

Q. The term roaring forties is related to which of the following?