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What happens to an aneroid barometer when air pressure changes?
When air pressure increases, the metal aneroid capsule in the barometer contracts, causing the needle to move towards high pressure. Conversely, when air pressure decreases, the metal capsule expands, causing the needle to move towards low pressure. This movement of the needle indicates changes in atmospheric pressure.
Where does low pressured air move to?
Low pressure air moves towards areas of higher pressure to equalize the pressure difference. This movement creates wind as air parcels try to balance out variations in air pressure.
Do isobars help you predict which way the air will move?
Yes they do. Scientists make maps with isobars on them.
Why do winds spiral towards the center of the hurricane?
Winds spiral towards the center of a hurricane due to the Coriolis effect, which is caused by the rotation of the Earth. As air rushes in towards the low-pressure center of the storm, the Coriolis effect deflects the moving air to the right in the Northern Hemisphere and to the left in the Southern Hemisphere, creating a spiraling motion.
What does high pressure move towards?
Air always flows from High Pressure towards Low Pressure. Wind is caused by the pressure gradient difference. In a high pressure system, within the Northern Hemisphere, air flows clockwise, outwards and downwards; in a low pressure system (in the NH), air flows anti-clockwise, inwards and upwards.
