Air pressure Flashcards
(9 cards)
What is the difference between warm and cool air
Warm air
-not very dense
-rises
-creates lower pressure
-spread out
Cool air
-very dense + moist
-sinks
-creates higher pressure
-close to each other
What happens when air is heated up?
The molecules and atoms move faster, expand and rise
Would it be high or low pressure if it was a sunny day?
High pressure
Would it be high or low pressure if it was a cloudy day?
Low pressure because the air particles have no force being pushed on when they rise
Wind always blows from what type of air pressure to what type of air pressure + why?
It travels from high to low to balance out the air molecules
Where does it usually cause wind?
coastal areas
How does a sea breeze happen on coastal areas
when sunny, the land warms up quicker than the sea. there will be a temperature contrast as the air molecules around the land expand and rise. as the warm air leaves the land, there will be a low pressure across it while the sea would be considered as high pressured. to equalise the pressure difference, there will a breeze from the sea to land. the rush or air is a sea breeze.
Should you mix up the words “low and sink” and “ high and rise”?
NEVER IN A MILLION YEARS!
Explain how wind is created.
Wind is created through to equalise the pressure difference between a low pressured area and a high pressured area. Wind usually travels from high pressure to low pressure to properly balance out. High pressure is usually found in hot places while low pressure is found in colder areas.
