IA1 Year 11 Geography

What type of weather does a CYCLONE bring?

• Clear and calm

• Unstable

Which word describes the air pressure reading in the centre of a cyclone?

• Low

• Medium

• High

What happens to cyclones as they reach the shore?

• The wind speed increases

• Nothing

• The weather system dissipates

What are cyclones also known as?

• Typhoons

• Cyclones

• Typhoons and Hurricanes

True or False? Every cyclone is unique according to a number of factors: life cycle, intensity, movement, size and impact.

• True

• False

Which category? Negligible house damage. Damage to some crops, trees and caravans. Air pressure above 985 hPa and wind speeds 63-88km/hr.

• Category 1

• Category 3

• Category 5

Which category? Extremely dangerous with widespread destruction. Air pressure below 930 hPa and wind speeds greater than 200km/hr.

• Category 1

• Category 3

• Category 5

What determines the difference between categories of cyclones?

• maximum average wind speed

• Hectopascals

• Damage

• maximum average wind speed and hectopascals

A large mound of water that accompanies a tropical cyclone as it comes ashore.

• Tidal Wave

• Tsunami

• Storm Surge

For a cyclone to form warm water is needed. How warm?

• At least 24.5°C

• At least 26.5°C