what is the difference between high pressure and low pressure?

Answer 1

High Pressure - Many more gas particles squeezed or compressed into a given container. Pressure is created by the countless amount of particles bouncing off of the walls of said container.

Low Pressure only means that there are much fewer particles of gas bouncing around the container.

Hope that answers your question.

Answer 2

In In high pressure region ,more air goes out of the region than the air which flows into it.It is called divergence.In the low pressure region,more air flows into it(at surface level) than the air which flows out.This is called convergence.
In the northern hemisphere,winds flow in a clockwise direction in a high pressure area whereas the winds flow counter clockwise in a low pressure region.
In the high pressure areas, the pressure increases from the periphery towards the centre.However,the pressure gradient is usually small and hence winds are light.Weather is usually fair in summer;but, in winter conditions are favourable for the formation of radiation fog.
In the low pressure region,pressure decreases from the periphery towards the centre.The pressure gradient is more (when compared to high pressure area) and the strength of the wind varies depending upon the pressure gradient. Low pressure areas are usually regions of bad weather with cloud,rain and stong winds.

Answer 3

Visualize it as the difference between a hill and a valley. High pressure is where air is denser and "piled up" as compared to the surrounding area, while low pressure is where the air is less dense as compared to the surrounding area.

Answer 4

One is high and the other is low.