weather studies

Question 1

factors influencing weather

Answer 1

temperature
relative humidity
rainfall
pressure and wind

Question 2

temperature is

Answer 2

the degree of hotness or coldness of a place

Question 3

factors influencing temperature

Answer 3

latitude
altitude
distance from sea
cloud cover

Question 4

format- how does temperature vary in a year

Answer 4

at a degree of 23.5
which hemisphere 
sun is over where
days and nights
solar angle
path length
effect on temperature

Question 5

march and september

Answer 5

exposed to sun for equal timing to cool and heat up

Question 6

diff temps at diff latitudes- solar angle

Answer 6

at lower latitudes- angle of the sun rays reach the earth’s surface vertically
concentrated heating-smaller surface area
intense heating-higher temperature
conversely,
scattered heating-large surface area
less intense heating- lower temperature

Question 7

diff temps at diff latitudes- path length

Answer 7

lower latitudes- rays past thru shorter distance of atmosphere- lose less heat
conversely,
higher latitudes- rays past thru longer distance of atmosphere- lose more heat

Question 8

temperature-altitude[radiation]

Answer 8

solar energy reaches earth through radiation
energy absorbed and radiated from ground
high altitude- less heat

Question 9

temperature-altitude[density of air]

Answer 9

higher altitudes- lower air pressure
less water vapour and dust at higher altitudes
cannot absorb a lot of heat
allows heat to escape

Question 10

maritime effect

Answer 10

summer- temp rises= land heats up faster
cool air over sea is brought to the coast= cool coastal areas

winter- temp drops= land cools faster
warmer air over sea is brought to the coast= warmer coastal areas

experience cool summer and warmer winters

Question 11

coastal effect

Answer 11

summer- land heats up faster than sea
air is warmer- warm summers

winter- land loses heat faster than sea
air is colder- cool winters

Question 12

night- cloud cover

Answer 12

little clouds- cold- heat radiating into space isn’t blocked

many clouds- heat radiated from ground is limited by clouds
it absorbs and deflects radiated heat from ground-heat is trapped

Question 13

day-cloud cover

Answer 13

little clouds-warm- huge amounts of sun energy reach earth, absorbed by land

many clouds-cool-reflects large amount of suns energy back into space.

Question 14

how is conventional rain formed?

Answer 14

1. air is heated. It expands and rises
2. cools to dew point temperature, further cooling results in condensation on condensation nuclei
3. droplets merge to form large and heavy droplets- cumulonimbus clouds.
4. when they become too heavy and large, they may fall to the ground as conventional rain

Question 15

how is relief rain formed?

Answer 15

1. air passes over the sea and arrives at the coast.
2. moist air is forced to rise up the windward side of the mountain
3. as air rises, it cools. the air becomes saturated with water vapour when dew point temperature is reached. further cooling results in condensation on condensation nuclei amend cloud formation.
4. rain falls on the windward side when water droplets merge and become large and heavy enough. this is known as relief rainfall.

Question 16

how does air temp. affect relative humidity

Answer 16

higher the air temp, the higher the maximum amount of water air can hold increases (as the air expands)
assuming the actual amount of water present remains the same, the relative humidity will increase.