Week 3 Notes!
Popular in Fundamentals of Physics
Popular in Physics 2
This 1 page Class Notes was uploaded by Chloe Smithson on Friday January 23, 2015. The Class Notes belongs to PHYS 102 at University of Oregon taught by Shahir in Winter2015. Since its upload, it has received 174 views. For similar materials see Fundamentals of Physics in Physics 2 at University of Oregon.
Reviews for Week 3 Notes!
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 01/23/15
Week 3 Flotation Whether an object floats or not depends on the volume of the object and the volume of the displaced fluid For something to float the weight of the object must be less than the buoyant force of the liquid or the weight of the liquid it displaces Pascal s Principle In the 17th century Blaise Pascal discovered that a change in pressure at any point in an enclosed fluid at rest is transmitted undiminished to all points in the fluid This applies to liquid and gases We see this used in hydraulic presses in which pressure applied to one piston is transmitted to the other making heavy loads liftable by small forces Factors affecting surface tension 0 Type of liquid 0 What s mixed with liquid 0 Temperature of liquid Capillarity This is the rise of liquid in a hollow tube that happens due to adhesion between molecules of water and class drawing a film of liquid into the tube Surface tension causes this film to contract The height of the fluid depends on the weight of liquid and the width of tube The Atmosphere considered an ocean of air that exerts quite a bit of pressure Atmospheric pressure is caused by the weight of air and it varies from one place to another It is most definitely not uniform and it is used to predict weather conditions The pressure exerted against bodies in the atmosphere is a result of the weight of the air pressing from above At sea level air pressure is 101 kilopascals and weighs 100000 N Barometer measures atmospheric pressure This instrument is a tube of mercury upside down in a dish filled with mercury The height of the column gives the atmospheric pressure Boyle s Law Boyles law states that pressure and volume of a gas enclosed in a space are inversely proportional This means that when you increase pressure you decrease volume and vice versa This also implies that the product of pressure and volume of a given gas will always remain the same