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This chapter explores the fundamental concepts of fluids, including the phases of matter - solid, liquid, gas, and plasma. It specifically focuses on liquids and gases, collectively known as fluids. Key topics covered include the definition and calculation of density (ρ = m/v), pressure in fluids (P = F/A), and atmospheric pressure, with relevant examples and a density chart. Additionally, it delves into the SI unit of pressure, Pascal, and the relationship between gauge and absolute pressure. Homework assignments are included for practice.
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Chapter 10Fluids 4 phases of matter solid, liquid, gas, plasma. Liquids and gases will collectively be referred to as fluids.
10-1 Density • We will use the symbol r for density • r= m/v • See example 10-1 p276 • See density chart p 276
10-2 Pressure in Fluids • Pressure=P=F/A • P= F/A=mgh/A • P=F/A=rAgh/A so P=rgh • See Example 10-2 p278
10-3 Atomospheric Pressure • 1 atm= 1.013 x105 N/m2 = 1.013 x105 pa • The SI unit for pressure is the Pascal • 1 bar = 100 kPa • Guage pressure is pressure measured at a local guage. • To get absolute pressure, one must add the atomospheric pressure, Pa , to gauge pressure.
Homework • P304 pr#1-11 due Thursday BOP.
