PHYS 1200 Lecture Notes - Lecture 12: Deep Sea, Tennis Ball, Rigid Body
18 Aug 2016
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Kernels (video of corn kernels flowing out of the truck like water: fluids are not rigid bodies. The distance between the atoms: solid are closer to each other than the atoms in a liquid, the atoms in a liquid are closer to each other than the atoms in a gas. Density: one way to characterize matter it depends on how close the atoms are to each other. P = force / area = f / a. Pressure: force per unit area unit of pressure is newtons per meter squared (also known as a pascal pounds per square inch (psi) tire gauge. Pressure in gas: class demonstration: warm up flask that moves the liquid class demonstration: balloon collapses in nitrogen class demonstration: tennis ball turns rock hard. Earth"s atmosphere: a thin layer of air surrounding the earth extends about 6 miles (if the earth was a basketball, would be about the thickness of a piece of paper)
