F3 - SEM1 - What is Weather? - 2.1 Flashcards
Which months does the typhoon season of Hong Kong falls?
2.1 What is Weather
July to September
Which months does the typhoon season of Hong Kong falls?
2.1 What is weather
What is Weather?
2.1 What is Weather
condition of atmosphere of a place over a short period of time
What is weather?
2.1 What is Weather
What are 6 Weather elements?
2.1 What is Weather
- Temperature
- Precipitation
- Air pressure
- Wind
- Relative humidity
- Cloud amount
What are 6 weather elements?
2.1 What is Weather
What is Temperature?
2.1 What is Weather
- how hot or cold the air is
- measured in degrees Celsius (oC)
What is temperature?
2.1 What is Weather
What is Precipitation?
2.1 What is Weather
- any form of water that falls from the sky
- e.g., rain, snow and hail
- measured in millimetres (mm)
What is precipitation?
2.1 What is Weather
What is Air pressure?
2.1 What is Weather
- weight of air pressing down on the the ground
- measured in hectopascal (hPa)
What is air pressure?
2.1 What is Weather
What is Wind?
2.1 What is Weather
- movement of air from high-pressure areas to low-pressure areas
- further divided into Wind direction and Wind speed
what is wind?
2.1 What is Weather
What is Wind direction?
2.1 What is Weather
- direction from which the wind blows
- e.g. northeast, southeast
what is wind direction?
2.1 What is Weather
What is Wind speed?
2.1 What is Weather
- how fast the air moves
- measured in metres per second (m/s)
what is wind speed?
2.1 What is Weather
What is Relative humidity?
2.1 What is Weather
- amount of water vapour in the air
- expressed as a percentage (%)
what is relative humidity?
2.1 What is Weather
What is Cloud amount?
2.1 What is Weather
- fraction of the sky covered by clouds
- expressed as a percentage (%)
what is cloud amount?
2.1 What is Weather
What is the function of weather chart?
2.1 What is Weather
- provide useful information about weather conditions over a certain area at a particular time
- display the weather elements of an area using symbols
what is weather chart?
2.1 What is Weather
What does arrows in weather chart represent?
2.1 What is Weather
wind
the orientation of arrow indicates wind direction
the number and size of feather indicate wind speed
what does arrows in weather chart represent?
2.1 What is Weather
What does number in weather chart represent?
2.1 What is Weather
temperature
what does number in weather chart represent?
2.1 What is Weather
What does red symbol in weather chart represent?
the form of precipitation
what does red symbol in weather chart represent?
2.1 What is Weather
