Pressure in Fluids 2 – Hollms School

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First	First	Last	Quiz Score Total	Question 2a	Image 2a	2a) Why is the pressure of the atmosphere lesser at higher altitudes than at the Earth's surface?	2b) Why do mountaineers take a supply of oxygen with them when they climb very tall mountains?	2c) Use the idea of pressure to explain why crisp packets expand in airplanes?	Quiz Percentage Grade
ppefmh	Ed	Garstin	0/1	The atmosphere gets less dense with altitude. The diagram below shows air at the Earth's surface and at a high altitude.		At higher altitudes the air is less dense than at sea level. This means there are fewer air particles per cubic metre of air. Because of this the force exerted on the surface by the gas particles will be lower at a higher altitude than at sea level. The pressure of the gas is due to the force exerted by the gas particles on the walls of the container. This means that gas pressure is lower at higher altitudes than at sea level. At higher altitudes the air is more dense than at sea level. This means there are more air particles per cubic metre of air. Because of this the force exerted on the surface by the gas particles will be higher at a lower altitude than at sea level. The pressure of the gas is due to the force exerted by the gas particles on the walls of the container. This means that gas pressure is higher at lower altitudes than at sea level.	svzc	xvcv	0%
First	First	Last	Quiz Score Total	Question 2a	Image 2a	2a) Why is the pressure of the atmosphere lesser at higher altitudes than at the Earth's surface?	2b) Why do mountaineers take a supply of oxygen with them when they climb very tall mountains?	2c) Use the idea of pressure to explain why crisp packets expand in airplanes?	Quiz Percentage Grade