Heating Of Atmosphere

Question 0

Describe radiation

Answer 0

Form of waves
In gases
E.g.Terrestrial radiation, solar radiation, fires and heaters

Question 1

What are the four types of heat transfer?

Answer 1

Radiation
Conduction
Convection
Latent

Question 2

Describe conduction

Answer 2

Through direct contact, no moving molecules
In solids
E.g. Pot on stove, ground, pot handle

Question 3

Describe convection?

Answer 3

Movement in particles
In liquids and gases
E.g. Convection currents in mantle, liquid in pot, convection current in atoms

Question 4

Describe latent heat

Answer 4

Phase change
E.g. Evaporation- heat energy is stored
E.g. Condensation- clouds form, latent energy released

Question 5

Define electromagnetic spectrum

Answer 5

How solar radiation reaches earth

Question 6

What are the short waves

Answer 6

Gamma ray
X ray
Ultraviolet
Solar radiation

Question 7

What are the long waves?

Answer 7

Infrared
Microwave
Radio
Terrestrial radiation

Question 8

Describe insolation

Answer 8

Heat transferred to atmosphere by convection
Heats up earth through conduction
Energy from sun which reaches the atmosphere

Question 9

What is solar depletion?

Answer 9

Amount of solar energy that reaches earth
53% lost by: reflection, absorption, scattering
47% reaches surface

Question 10

How/why/when do we see a rainbow?

Answer 10

Ray of sunlight hits water droplet at a certain angle, different colours that make up the beam is separated.
It is an optical illusion

Question 11

Why is the sky blue?

Answer 11

Blue and violet are just the right size to be absorbed by nitrogen gase is the Tmoshere, then reflected again

Question 12

Why is the sky orange/red at sunrise/sunset?

Answer 12

Sun is going to be at low angle therefore more atmosphere to go through. Longer waves get refracted off particles in air e.g. Pollution and dust
Best sunsets: Antarctica, big cities, desert, sea