Low Pressure High Pressure

Question 1

Low pressure..Warm air does what?

Answer 1

1.Cools down as it rises
2.Leads to cloud formation and precipitation
3.Extreme unstable conditions

Question 2

High pressure..descending cold air does what?

Answer 2

1.Heats up as it descends
2.little to none cloud formation
3.no precipitation
4.calm /stable weather conditions

Question 3

Southern hemisphere will ?

Answer 3

Rotate clockwise into the centre of a low pressure system

Question 4

What is a front ?

Answer 4

Separation of two air masses usually with different characteristics
-Because of these difference characteristics the air masses will not mix

Question 5

Why a front(cold or warm )may lead to cloud formation and precipitation

Answer 5

Warm air rises and when warm air is advancing towards the cold air ,warm air is forced to override cold air leading to cloud formation and precipitation

Question 6

Family of fronts

Answer 6

Three or four fronts that are connected (furthers east is the oldest because of the movement from west to east )

Question 7

Tropical cyclone characteristics

Answer 7

1.intense low pressure system
2.develop between 5-20 degrees latitude
3.move westward (east to west )
4.driven by easterlies
5.heavy rainfall,storms and high wind speeds

Question 8

Conditions needed for tropical cyclones to form

Answer 8

-high humidity…latent heat release during condensation
-stable calm weather conditions
-little surface friction

Question 9

What causes the dissipation of mid-latitude cyclones

Answer 9

When all the warm air is been uplift far above the surfaces

Question 10

How to reduce the negative impacts of cold fronts

Answer 10

Stay indoors
Avoid outdoor activities
Delay travelling
Stock up to food /water /medical supplies