PRESSURE. 7. Fluids 2


 Stanley White
 1 years ago
 Views:
Transcription
1 DENSITY Fluids can flow, change shape, split into smaller portions and combine into a larger system One of the best ways to quantify a fluid is in terms of its density The density, ρ, of a material (or fluid) is defined as the mass, M, per volume, V:ρ= M/V kg/m 3 The denser a material, the more mass it has in any given volume The density of a substance is the same regardless of the amount in a system 7. Fluids 1
2 PRESSURE Pressure, P, is a measure of the amount of force, F, per area, A: P = F/A N/m 2 Pressure is increased if the force applied to a given area is increased, or if a given force is applied to a smaller area For example pressing your finger against a balloon just causes a small indentation, whereas pushing a needle with the same force causes the balloon to burst The smaller surface area of the needle tip causes a large enough pressure to rupture the balloon Example: Find the pressure exerted on the skin of a balloon if you press with a force of 2.1N using first your finger, then a needle. Assume the area of your fingertip is m 2, and the area of the needle tip is m 2. Also find the minimum force necessary to pop the balloon with the needle, given that the balloon pops with a pressure of N/m Fluids 2
3 ATMOSPHERIC PRESSURE Atmospheric pressure, P at, is a direct result of the weight of the air above us P at = N/m 2 A shorthand unit for N/m 2 is the pascal (Pa) 1 Pa = 1 N/m 2 (P at = 101 kpa) In British units, pressure is measured in pounds per square inch: P at = 14.7 lb/in 2 A common unit for measuring atmospheric pressure in weather forecasting is the bar: 1 bar = 10 5 Pa 1 P at Example: Find the force exerted on the palm of your hand by atmospheric pressure. Assume that your palm measures 0.08m by 0.1m. If your hand is vertical, P at pushes to the right and left equally, so your hand feels zero net force The forces cancel in which ever orientation your hand is in The pressure in a fluid acts equally in all directions, and acts at rights angles to any surface 7. Fluids 3
4 GAUGE PRESSURE In many cases we are interested in the difference between a given pressure and atmospheric pressure For example, a flat tire does not have zero pressure in it the pressure in the tire is atmospheric pressure To inflate the tire to, say, 241 kpa, the pressure inside the tire must be greater than atmospheric pressure by this amount: P = 241 kpa + P at = 342 kpa Thus gauge pressure, P g is P g = P P at Thus it is gauge pressure that is determined by the tire gauge Example: Derive the formula to calculate the gauge pressure in a basketball by pushing down on it and noting the area of contact it makes with the surface on which it rests. 7. Fluids 4
5 STATIC EQUILIBRIUM IN FLUIDS: PRESSURE AND DEPTH (1) As a submarine dives deep into the depths of the sea, its hull undergoes increasing pressure The increased pressure is due to the added weight of water pressing on the hull as it goes deeper Consider a cylindrical container filled to a height h with a fluid of density ρ The top surface of the fluid is exposed to the atmosphere with a pressure P at, and the cross sectional area of the container is A The downward force exerted on the top surface exerted by the atmosphere is F top = P at A At the bottom of the container, the downward force is F top plus the weight of the fluid For a cylinder of height h and area A, the weight is given by W = Mg = ρvg = ρ(ha)g Hence F bottom = F top + W = P at A + ρ(ha)g The pressure at the bottom of the container is found by dividing F bottom by the area A P bottom = F bottom /A = [P at A + ρ(ha)g]/a = P at + ρgh This relation holds for any depth h below the surface P = P at + ρgh 7. Fluids 5
6 STATIC EQUILIBRIUM IN FLUIDS: PRESSURE AND DEPTH (2) The relation P = P at + ρgh can be applied to any two points in a fluid If the pressure at one point is P 1 and the pressure P 2 is at a depth h below the first point then it follows that the pressure at P 2 is P 2 = P 1 + ρgh 7. Fluids 6
7 PRESSURE AND DEPTH: EXAMPLE A cubical box 20.0cm on one side is completely immersed in a fluid. At the top of the box, the pressure is 105kPa; at the bottom the pressure is 106.8kPa. What is the density of the fluid? What type of fluid is being used? 7. Fluids 7
8 THE BAROMETER (1) A barometer makes use of the variation of pressure with depth to measure atmospheric pressure It works on the principle of filling a long glass tube (open at one end, and closed at the other) with a fluid of density ρ Next, the tube is inverted and its open end is placed below the surface of the same fluid in a bowl This leaves an empty space (vacuum) at the top Enough of the fluid remains in the tube to create a difference in level, h, between that in the bowl and in the tube This height difference is related to the atmospheric pressure pushing down on the fluid in the bowl The pressure in the vacuum at the top of the tube is zero Thus the pressure at a depth h below the vacuum is 0 + ρgh = ρgh Thus at the level of the fluid in the bowl, the pressure is known to be 1 atmosphere, and P at = ρgh A change in P at would cause a pressure difference between the fluid in the tube and that in the bowl, resulting in a net force and a flow of fluid Thus a measurement of h will give the atmospheric pressure 7. Fluids 8
9 THE BAROMETER (2) A fluid that is often used in barometers is mercury (Hg), with a density ρ = Pa The corresponding height for a column of mercury at 1 atmosphere is h = P at /ρg = 760mm Atmospheric pressure is defined in terms of millimetres of mercury (mmhg) 1 atmosphere = P at = 760 mmhg 7. Fluids 9
10 FLUIDS SEEK THEIR OWN LEVEL In order for fluids to seek their own level, it is necessary that the pressure at the surface of the fluid is the same everywhere over the surface This was not the case for the barometer, where the pressure was P at on one portion, and zero elsewhere Consider a Ushaped tube containing a quantity of fluid, density ρ the fluid rises to the same level in each arm, where it is open to the atmosphere The pressure at each base of the arm is the same, and is P at + ρgh The fluid in the horizontal section is pushed with equal force from each side: the fluid remains at rest If the two arms of the U are filled to different levels, the pressure at the base of the two arms are different: the greater pressure at the base of the right arm (b) The fluid in the horizontal section experiences a net force to the left, causing it to move in that direction, equalising the fluid level in both arms 7. Fluids 10
11 FLUID LEVELS AND ENERGY MINIMISATION Consider a Utube that is initially filled to the same level in both arms, and consider moving a small element of fluid from one arm to the other to create different levels To extract this fluid element, it is necessary to lift it upward, thus causing its potential energy to increase This leads to the conclusion that when the fluid levels are different, the system s original minimum energy when the levels were the same undergoes and increase If two different liquids with different densities are combined in the same Utube, the levels in the arms are not the same However the pressures at the base of each are must be equal 7. Fluids 11
12 OIL AND WATER DO NOT MIX: EXAMPLE A Ushaped tube is filled mostly with water, but a small amount of vegetable oil has been added to one side. The density of the water is kg/m 3. The density of the oil is kg/m 3. If the depth of the oil is 5.0cm, what is the difference in level h between the top of the oil on one side of the U and the top of the water on the other side? 7. Fluids 12
13 PASCAL S PRINCIPLE Recall that P = P at + ρgh, which is the pressure at a depth h below the surface when a liquid is exposed to atmospheric pressure If P at is increased to P at + P, the pressure at the depth h is: P = P at + P + ρgh = (P at + ρgh) + P By increasing the pressure at the top of the fluid by P, we have increased it by the same amount everywhere in the fluid Pascal s principle An external pressure applied to an enclosed fluid is transmitted unchanged to every point within the fluid 7. Fluids 13
14 PASCAL S PRINCIPLE: EXAMPLE THE HYDRAULIC LIFT In a hydraulic lift, there are two cylinders of cross sectional areas A 1 and A 2, where A 2 > A 1 Each cylinder is fitted with a piston, and are connected by a tube filled with a fluid Initially the pistons are at the same level and exposed to the atmosphere Suppose a force F 1 pushes down on piston 1, causing an increase in pressure in that cylinder: P = F 1 /A 1 By Pascal s principle, the pressure in cylinder 2 increases by the same amount; the increased upward force on piston 2 is due to the fluid: F 2 = ( P)A 2 Substituting for P = F 1 /A 1, we find that: F 2 = (F 1 /A 1 )A 2 = F 1 (A 2 /A 1 ) > F 1 7. Fluids 14
Lecture Outline Chapter 15. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.
Lecture Outline Chapter 15 Physics, 4 th Edition James S. Walker Chapter 15 Fluids Density Units of Chapter 15 Pressure Static Equilibrium in Fluids: Pressure and Depth Archimedes Principle and Buoyancy
More informationIn the liquid phase, molecules can flow freely from position. another. A liquid takes the shape of its container. 19.
In the liquid phase, molecules can flow freely from position to position by sliding over one another. A liquid takes the shape of its container. In the liquid phase, molecules can flow freely from position
More informationIn the liquid phase, molecules can flow freely from position to position by sliding over one another. A liquid takes the shape of its container.
In the liquid phase, molecules can flow freely from position to position by sliding over one another. A liquid takes the shape of its container. In the liquid phase, molecules can flow freely from position
More informationPhys101 Lectures Fluids I. Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle. Ref: 101,2,3,4,5,6,7.
Phys101 Lectures 2425 luids I Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle Ref: 101,2,3,4,5,6,7. Page 1 101 Phases of Matter The three common phases of matter are solid,
More information. In an elevator accelerating upward (A) both the elevator accelerating upward (B) the first is equations are valid
IIT JEE Achiever 2014 Ist Year Physics2: Worksheet1 Date: 20140626 Hydrostatics 1. A liquid can easily change its shape but a solid cannot because (A) the density of a liquid is smaller than that of
More informationSlide 5 / What is the difference between the pressure on the bottom of a pool and the pressure on the water surface? A ρgh B ρg/h C ρ/gh D gh/ρ
Slide 1 / 47 1 Two substances mercury with a density 13600 kg/m3 and alcohol with a density 800 kg/m3 are selected for an experiment. If the experiment requires equal masses of each liquid, what is the
More information1. The principle of fluid pressure that is used in hydraulic brakes or lifts is that:
University Physics (Prof. David Flory) Chapt_15 Thursday, November 15, 2007 Page 1 Name: Date: 1. The principle of fluid pressure that is used in hydraulic brakes or lifts is that: A) pressure is the same
More informationAssistant Lecturer Anees Kadhum AL Saadi
Pressure Variation with Depth Pressure in a static fluid does not change in the horizontal direction as the horizontal forces balance each other out. However, pressure in a static fluid does change with
More informationPressure is defined as force per unit area. Any fluid can exert a force
Physics Notes Chapter 9 Fluid Mechanics Fluids Fluids are materials that flow, which include both liquids and gases. Liquids have a definite volume but gases do not. In our analysis of fluids it is necessary
More informationFluid Mechanics. Liquids and gases have the ability to flow They are called fluids There are a variety of LAWS that fluids obey
Fluid Mechanics Fluid Mechanics Liquids and gases have the ability to flow They are called fluids There are a variety of LAWS that fluids obey Density Regardless of form (solid, liquid, gas) we can define
More information1. All fluids are: A. gases B. liquids C. gases or liquids D. nonmetallic E. transparent ans: C
Chapter 14: FLUIDS 1 All fluids are: A gases B liquids C gases or liquids D nonmetallic E transparent 2 Gases may be distinguished from other forms of matter by their: A lack of color B small atomic weights
More informationFluid Mechanics  Hydrostatics. AP Physics B
luid Mechanics  Hydrostatics AP Physics B States of Matter Before we begin to understand the nature of a luid we must understand the nature of all the states of matter: The 3 primary states of matter
More informationChapter 14. Fluids. A fluid a substance that can flow (in contrast to a solid)
Chapter 4 luids A luid a substance that can low (in contrast to a solid) Air Water luids comort to the boundaries o any container in which we put them, and do not maintain a ixed shape density and pressure
More informationAP B Fluids Practice Problems. Multiple Choice. Slide 2 / 43. Slide 1 / 43. Slide 4 / 43. Slide 3 / 43. Slide 6 / 43. Slide 5 / 43
Slide 1 / 43 Slide 2 / 43 P Fluids Practice Problems Multiple hoice Slide 3 / 43 1 Two substances mercury with a density 13600 kg/m 3 and alcohol with a density 0.8 kg/m 3 are selected for an experiment.
More informationPHYS 101 Previous Exam Problems
PHYS 101 Previous Exam Problems CHAPTER 14 Fluids Fluids at rest pressure vs. depth Pascal s principle Archimedes s principle Buoynat forces Fluids in motion: Continuity & Bernoulli equations 1. How deep
More informationGauge Pressure, Absolute Pressure, and Pressure Measurement
Gauge Pressure, Absolute Pressure, and Pressure Measurement By: OpenStax College Online: This module is copyrig hted by Rice University. It is licensed under the Creative
More informationChapter 9. Forces and Fluids
Chapter 9 Forces and Fluids Key Terms hydraulic systems incompressible mass neutral buoyancy pascal pneumatic systems pressure unbalanced forces weight Archimedes principle average density balanced forces
More informationPage 1
Contents: 1. Thrust and Pressure 2. Pressure in Fluids 3. Buoyancy 4. Why objects sink or Float when placed on surface of water? 5. Archimedes Principle 6. Relative Density Learning Objectives: The students
More information2 Buoyant Force. TAKE A LOOK 2. Identify What produces buoyant force?
CHAPTER 3 2 Buoyant Force SECTION Forces in Fluids BEFORE YOU READ After you read this section, you should be able to answer these questions: What is buoyant force? What makes objects sink or float? How
More informationUnit A2: List of Subjects
ES312 Energy Transfer Fundamentals Unit A: Fundamental Concepts ROAD MAP... A1: Introduction to Thermodynamics A2: Engineering Properties Unit A2: List of Subjects Basic Properties and Temperature Pressure
More informationMultiple Choice. AP B Fluids Practice Problems. Mar 22 4:15 PM. Mar 22 4:15 PM. Mar 22 4:02 PM
P Fluids Practice Problems Mar 22 4:15 PM Multiple hoice Mar 22 4:15 PM 1 Two substances mercury with a density 13600 kg/m 3 and alcohol with a density 0.8 g/cm 3 are selected for an experiment. If the
More informationTHERMODYNAMICS, HEAT AND MASS TRANSFER TUTORIAL NO: 1 (SPECIFIC VOLUME, PRESSURE AND TEMPERATURE)
THERMODYNAMICS, HEAT AND MASS TRANSFER TUTORIAL NO: 1 (SPECIFIC VOLUME, PRESSURE AND TEMPERATURE) 1. A vacuum gauge mounted on a condenser reads 66 cm Hg. What is the absolute pressure in the condenser
More informationLiquids and Gases. O, 1 L = 2.2 lbs H 2. O = 1 kg H 2
Liquids and Gases The unit of volume is the meter cubed, m 3, which is a very large volume. Very often we use cm 3 = cc, or Litres = 10 3 cc Other everyday units are gallons, quarts, pints 1 qt = 2 lbs
More informationUnit A: Mix and Flow of Matter
Unit A: Mix and Flow of Matter Science 8 1 Section 3.0 THE PROPERTIES OF GASES AND LIQUIDS CAN BE EXPLAINED BY THE PARTICLE MODEL OF MATTER. 2 1 Viscosity and the Effects of Temperature Topic 3.1 3 Viscosity
More informationFluids, Pressure and buoyancy
Fluids, Pressure and buoyancy Announcements: CAPA due Friday at 10pm. Comment on the hint in Problem 5. CAPA solutions from previous sets can be found by logging onto CAPA and selecting View Previous Set
More informationthen the work done is, if the force and the displacement are in opposite directions, then the work done is.
1. What is the formula for work? W= x 2. What are the 8 forms of energy? 3. Write the formula for the following: Kinetic Energy Potential Energy 4. If the force and the displacement are in the same direction,
More informationChapter 13 Fluids. Copyright 2009 Pearson Education, Inc.
Chapter 13 Fluids Phases of Matter Density and Specific Gravity Pressure in Fluids Atmospheric Pressure and Gauge Pressure Pascal s Principle Units of Chapter 13 Measurement of Pressure; Gauges and the
More informationGases and Pressure SECTION 11.1
SECTION 11.1 Gases and In the chapter States of Matter, you read about the kineticmolecular theory of matter. You were also introduced to how this theory explains some of the properties of ideal gases.
More informationSPH 4C Unit 4 Hydraulics and Pneumatic Systems
SPH 4C Unit 4 Hydraulics and Pneumatic Systems Properties of Fluids and Pressure Learning Goal: I can explain the properties of fluids and identify associated units. Definitions: Fluid: A substance that
More informationACTIVITY 1: Buoyancy Problems. OBJECTIVE: Practice and Reinforce concepts related to Fluid Pressure, primarily Buoyancy
LESSON PLAN: SNAP, CRACKLE, POP: Submarine Buoyancy, Compression, and Rotational Equilibrium DEVELOPED BY: Bill Sanford, Nansemond Suffolk Academy 2012 NAVAL HISTORICAL FOUNDATION TEACHER FELLOWSHIP ACTIVITY
More informationMore About Solids, Liquids and Gases ASSIGNMENT
More About Solids, Liquids and Gases ASSIGNMENT 1. Fill in the blank spaces by choosing the correct words from the list given below: List : water, density, altitudes, lateral, intermolecular, force, cohesion,
More informationSlide 1 / What is the density of an aluminum block with a mass of 4050 kg and volume of 1.5 m 3?
Slide 1 / 68 1 What is the density of an aluminum block with a mass of 4050 kg and volume of 1.5 m 3? Slide 2 / 68 2 What is the mass of a rectangular shaped ice block with dimensions of 0.04m x 0.05m
More informationMS.RAJA ELGADY/PRESSURE PAPER 3
1 (a) A water tank has a rectangular base of dimensions 1.5m by 1.2m and contains 1440 kg of water. Calculate (i) the weight of the water, weight =...... [1] (ii) the pressure exerted by the water on
More informationFluids: Floating & Flying. Student Leaning Objectives 2/16/2016. Distinguish between force and pressure. Recall factors that allow floating
Fluids: Floating & Flying (Chapter 3) Student Leaning Objectives Distinguish between force and pressure Recall factors that allow floating Differentiate between cohesion and adhesion Analyze Pascal s principle
More informationUNIQUE SCIENCE ACADEMY
1 (a) UNIQUE SIENE EMY Test (Unit 7) Name :... Paper: Physics ate : 04.07.2011 ode: 5054 lass: I Time llowed: 35Minutes Maximum Marks: 25 1 Theory Section: What do you understand by the term pressure.
More informationChapter 3 PRESSURE AND FLUID STATICS
Fluid Mechanics: Fundamentals and Applications, 2nd Edition Yunus A. Cengel, John M. Cimbala McGrawHill, 2010 Chapter 3 PRESSURE AND FLUID STATICS Lecture slides by Hasan Hacışevki Copyright The McGrawHill
More informationMatter is made up of particles which are in continual random motion Misconception: Only when a substance is in its liquid or gas state do its
Kinetic Theory of Matter Matter is made up of particles which are in continual random motion Misconception: Only when a substance is in its liquid or gas state do its particles move because in these two
More informationDensity and Buoyancy Notes
Density and Buoyancy Notes Measuring Mass and Volume 3.1 Density A balance can be used to measure the mass of an object. If the object is a liquid, pour it into a graduated cylinder to measure the volume.
More informationExercises The Atmosphere (page 383) 20.2 Atmospheric Pressure (pages )
Exercises 20.1 The Atmosphere (page 383) 1. The energizes the molecules in Earth s atmosphere. 2. Why is gravity important to Earth s atmosphere? 3. What would happen to Earth s atmosphere without the
More informationFluid Statics. Henryk Kudela. 1 Distribution of Pressure in the Fluid 1. 2 Hydrostatic pressure 3. 3 The Measurement of the Pressure 4
Fluid Statics Henryk Kudela Contents 1 Distribution of Pressure in the Fluid 1 2 Hydrostatic pressure 3 3 The Measurement of the Pressure 4 Fluid statics is that branch of mechanics of fluids that deals
More informationToday: Finish Chapter 13 (Liquids) Start Chapter 14 (Gases and Plasmas)
Today: Finish Chapter 13 (Liquids) Start Chapter 14 (Gases and Plasmas) Gases and plasmas: Preliminaries Will now apply concepts of fluid pressure, buoyancy, flotation of Ch.13, to the atmosphere. Main
More informationConcepTest PowerPoints
ConcepTest PowerPoints Chapter 10 Physics: Principles with Applications, 6 th edition Giancoli 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for
More informationForces in Fluids. Pressure A force distributed over a given area. Equation for Pressure: Pressure = Force / Area. Units for Pressure: Pascal (Pa)
Pressure A force distributed over a given area Equation for Pressure: Pressure = Force / Area Force = Newton s Area = m 2 Units for Pressure: Pascal (Pa) Forces in Fluids Forces in Fluids A woman s high
More informationApplications of Bernoulli s principle. Principle states that areas with faster moving fluids will experience less pressure
Applications of Bernoulli s principle Principle states that areas with faster moving fluids will experience less pressure Artery o When blood flows through narrower regions of arteries, the speed increases
More informationOutcomes: Example the historical development of the measurement of pressure. Include: Galileo, Toricelli, von Gureick, Pascal, Huygens, Avogadro,
History of Pressure Outcomes: Example the historical development of the measurement of pressure. Include: Galileo, Toricelli, von Gureick, Pascal, Huygens, Avogadro, Dalton. Describe the various units
More informationLesson 12: Fluid statics, Continuity equation (Sections ) Chapter 9 Fluids
Lesson : luid statics, Continuity equation (Sections 9.9.7) Chapter 9 luids States of Matter  Solid, liquid, gas. luids (liquids and gases) do not hold their shapes. In many cases we can think of liquids
More information20 Gases. Gas molecules are far apart and can move freely between collisions.
Gas molecules are far apart and can move freely between collisions. Gases are similar to liquids in that they flow; hence both are called fluids. In a gas, the molecules are far apart, allowing them to
More informationGas molecules are far apart. collisions The Atmosphere
Gas molecules are far apart and can move freely between collisions. Gases are similar to liquids in that they flow; hence both are called fluids. In a gas, the molecules are far apart, allowing them to
More informationEnd of Chapter Exercises
End of Chapter Exercises Exercises 1 12 are conceptual questions that are designed to see if you have understood the main concepts of the chapter. 1. While on an airplane, you take a drink from your water
More informationName: Class: Date: SHORT ANSWER Answer the following questions in the space provided.
CHAPTER 11 REVIEW Gases SECTION 1 SHORT ANSWER Answer the following questions in the space provided. 1. Pressure =. For a constant force, when the surface area is tripled the pressure is (a) doubled. (b)
More informationTo connect the words of Archimedes Principle to the actual behavior of submerged objects.
Archimedes Principle PURPOSE To connect the words of Archimedes Principle to the actual behavior of submerged objects. To examine the cause of buoyancy; that is, the variation of pressure with depth in
More informationAP Lab 11.3 Archimedes Principle
ame School Date AP Lab 11.3 Archimedes Principle Explore the Apparatus We ll use the Buoyancy Apparatus in this lab activity. Before starting this activity check to see if there is an introductory video
More informationPressure Measurement
Pressure Measurement Manometers Sensors, Transducers Ashish J. Modi Lecturer, Dept. of Mech.Engg., Shri S.V.M. inst. Of Technology, Bharuch Pressure Pressure is a force per unit area exerted by a fluid
More informationComments on Homework. Class 4  Pressure. Atmospheric Pressure. Gauge vs. Absolute Pressure. 2. Gauge vs. Absolute Pressure. 1.
Class 4  Pressure 1. Definitions 2. Gauge Pressure 3. Pressure and Height of Liquid Column (Head) 4. Pressure Measurement and Manometers Please don t forget the special problem for the next HW assignment
More informationPhysics, Chapter 8: Hydrostatics (Fluids at Rest)
University of Nebraska  Lincoln DigitalCommons@University of Nebraska  Lincoln Robert Katz Publications Research Papers in Physics and Astronomy 1958 Physics, Chapter 8: Hydrostatics (Fluids at Rest)
More informationUnit 9 Packet: Gas Laws Introduction to Gas Laws Notes:
Name: Unit 9 Packet: Gas Laws Introduction to Gas Laws Notes: Block: In chemistry, the relationships between gas physical properties are described as gas laws. Some of these properties are pressure, volume,
More information12 fa. eel), Ara, Fl eat Mobi eu) r V14,:srholki CV 65 P 1 1). e2r 46. ve, lactogin. 1 V eil  (  t Teo. c 1 4 d 4. .'= tit/ (4 nit) 6 )
1). e2r 46 h eel), /pea lactogin Yd / In 1 V eil  (  Cw ve, P 1 Ara, Fl eat Mobi eu) r V14,:srholki 5e 0 (44,4 ci4) CV 65 So 0 t Teo.'= tit/ (4 nit) 6 ) ci Seco (df_ 1 c 1 4 d 4 540 C 12 fa 4)
More informationChapter 9 Fluids CHAPTER CONTENTS
Flowing fluids, such as the water flowing in the photograph at Coors Falls in Colorado, can make interesting patterns In this chapter, we will investigate the basic physics behind such flow Photo credit:
More informationUnit code: H/ QCF level: 5 Credit value: 15 OUTCOME 3  STATIC AND DYNAMIC FLUID SYSTEMS TUTORIAL 2  STATIC FLUID SYSTEMS
Unit 43: Plant and Process Principles Unit code: H/601 44 QCF level: 5 Credit value: 15 OUTCOME 3  STATIC AN YNAMIC FLUI SYSTEMS TUTORIAL  STATIC FLUI SYSTEMS 3 Understand static and dnamic fluid sstems
More informationProcess Nature of Process
AP Physics Free Response Practice Thermodynamics 1983B4. The pvdiagram above represents the states of an ideal gas during one cycle of operation of a reversible heat engine. The cycle consists of the
More informationATMOSPHERIC PRESSURE
ATMOSPHERIC PRESSURE 3.1 Air weight 3.2 Torricelli s experience 3.3 Pressure measuring unit 3.1 AIR WEIGHT Solid bodies have their own weight, and gaseous bodies such as air also have their own weight.
More informationof Gases Airbags fill with N 2 gas in an accident. Gas is generated by the decomposition of General Properties
BEHAVIOR OF GASES Chapter 12 1 Importance of Gases 2 Hot Air Balloons How Do They Work? 3 Airbags fill with N 2 gas in an accident. Gas is generated by the decomposition of sodium azide,, NaN 3. 2 NaN
More informationTo convert to millimeters of mercury, we derive a unit factor related to the equivalent relationship 29.9 in. Hg = 760 mm Hg.
Example Exercise 11.1 Gas Pressure Conversion Meteorologists state that a falling barometer indicates an approaching storm. Given a barometric pressure of 27.5 in. Hg, express the pressure in each of the
More informationThis chapter deals with forces applied by fluids at rest or in rigidbody
cen72367_ch03.qxd 10/29/04 2:21 PM Page 65 PRESSURE AND FLUID STATICS CHAPTER 3 This chapter deals with forces applied by fluids at rest or in rigidbody motion. The fluid property responsible for those
More informationGas Laws. Directions: Describe what contribution each of the Scientist below made to the Gas Laws and include there gas law equation.
Gas Laws Name Date Block Introduction One of the most amazing things about gases is that, despite wide differences in chemical properties, all the gases more or less obey the gas laws. The gas laws deal
More informationCard 1 Chapter 17. Card 2. Chapter 17
Card 1 Card 2 Liquid A  1.4 g/ml; Liquid B .82 g/ml; Liquid C  1.0 g/ml; one liquid you know. What is it? Also how will they stack? Where will a 1.6 g/ml object end up? Find the density of a 5 milliliter,
More informationVACUUM TESTING PRECAST CONCRETE MANHOLES
1 OF 5 testing is a quick, safe and practical way to validate manhole system integrity. Manhole sections can be tested at the precast concrete plant prior to delivery or on site prior to backfilling. Here
More informationChapter 11: Gases: Homework: Read Chapter 11. Keep up with MasteringChemistry and workshops
C h e m i s t r y 1 2 C h a p t e r 11 G a s e s P a g e 1 Chapter 11: Gases: Homework: Read Chapter 11. Keep up with MasteringChemistry and workshops Gas Properties: Gases have high kinetic energy low
More information1Pressure 2 21Volume 2 2. or Temperature 2. where the subscript 1 signifies the initial conditions and the subscript 2 signifies the final conditions.
104 Gases The ideal gas law expresses the relationship between the pressure, volume, and temperature of a gas. In the exercises in this chapter, the mass of the gas remains constant. You will be examining
More informationStates of Matter Review
States of Matter Review May 13 8:16 PM Physical States of Matter (Phases) Solid Liquid Melting Gas Condensation Freezing Evaporation Deposition Sublimation Sep 13 6:04 PM 1 May 13 8:11 PM Gases Chapter
More informationChapter 13 Gases, Vapors, Liquids, and Solids
Chapter 13 Gases, Vapors, Liquids, and Solids Property is meaning any measurable characteristic of a substance, such as pressure, volume, or temperature, or a characteristic that can be calculated or deduced,
More informationLab. Manual. Fluid Mechanics. The Department of Civil and Architectural Engineering
Lab. Manual of Fluid Mechanics The Department of Civil and Architectural Engineering General Safety rules to be followed in Fluid Mechanics Lab: 1. Always wear shoes before entering lab. 2. Do not touch
More informationPressure and buoyancy in fluids
Pressure and buoyancy in fluids FCQ s for lecture and tutorials will be next week. Buoyancy force today Fluid dynamics on Monday (alon with the loudest demonstration of the semester). Review on Wednesday
More informationChapter 13 Gases. H. Cannon, C. Clapper and T. Guillot Klein High School. Pressure/Temperature Conversions
Chapter 13 Gases Pressure/Temperature Conversions Convert the following: 1. 3.50 atm = kpa 2. 123 atm = mmhg 3. 970.0 mmhg = torr 4. 870.0 torr = kpa 5. 250.0 kpa = atm 6. 205.0 mmhg = kpa 7. 12.4 atm
More informationWe live on the only planet in the
LIQUIDS Objectives Describe what determines the pressure of a liquid at any point. (19.1) Explain what causes a buoyant force on an immersed or submerged object. (19.2) Relate the buoyant force on an immersed
More informationLecture Presentation. Chapter 10. Gases. John D. Bookstaver St. Charles Community College Cottleville, MO Pearson Education, Inc.
Lecture Presentation Chapter 10 John D. Bookstaver St. Charles Community College Cottleville, MO Characteristics of Unlike liquids and solids, gases Expand to fill their containers. Are highly compressible.
More informationTHE GAS STATE. Unit 4. CHAPTER KEY TERMS HOME WORK 9.1 Kinetic Molecular Theory States of Matter Solid, Liquid, gas.
Unit 4 THE GAS STATE CHAPTER KEY TERMS HOME WORK 9. Kinetic Molecular Theory States of Matter Solid, Liquid, gas Page 4 # to 4 9. Boyles Law P α /V PV = Constant P V = P V Pressure Atmospheric Pressure
More informationDensity and Buoyancy
Density and Buoyancy A fluid exerts an upward force on an object that is placed in the fluid. LESSON 1 Density The density of a material is a measure of how much matter is packed into a unit volume of
More informationBuoyancy and the Density of Liquids (approx. 2 h) (11/24/15)
Buoyancy and the Density of Liquids (approx. 2 h) (11/24/15) Introduction Which weighs more, a pound of lead or a pound of feathers? If your answer to this question is "a pound of lead", then you are confusing
More informationAnother convenient term is gauge pressure, which is a pressure measured above barometric pressure.
VACUUM Theory and Applications Vacuum may be defined as the complete emptiness of a given volume. It is impossible to obtain a perfect vacuum, but it is possible to obtain a level of vacuum, defined as
More informationCARTESIAN DIVER (1 Hour)
(1 Hour) Addresses NGSS Level of Difficulty: 2 Grade Range: K2 OVERVIEW In this activity, students will build a Cartesian diver and discover how compression and changes in density cause the diver to mysteriously
More informationGas Laws. Introduction
Gas Laws Introduction In 1662 Robert Boyle found that, at constant temperature, the pressure of a gas and its volume are inversely proportional such that P x V = constant. This relationship is known as
More informationShark Biology Buoyancy by Bill Andrake
Shark Biology Buoyancy by Bill Andrake Science Lesson: Buoyancy  Based on Webisode 45  Shark Biology Grade Level: 68 Time: Four (4550 minute) class periods Introduction Jonathan narrates an educational
More informationINSTRUCTIONAL GOAL: Explain and perform calculations regarding the buoyant force on a
Snap, Crackle, Pop! Submarine Buoyancy, Compression, and Rotational Equilibrium Bill Sanford, Physics Teacher, Nansemond Suffolk Academy, Suffolk 2012 Naval Historical Foundation STEMH Teacher Fellowship
More informationDigiquartz WaterBalanced Pressure Sensors for AUV, ROV, and other Moving Underwater Applications
Digiquartz WaterBalanced Pressure Sensors for AUV, ROV, and other Moving Underwater Applications Dr. Theo Schaad Principal Scientist Paroscientific, Inc. 2002 Paroscientific, Inc. Page 1 of 6 Digiquartz
More informationChemistry HP Unit 6 Gases. Learning Targets (Your exam at the end of Unit 6 will assess the following:) 6. Gases
Chemistry HP Unit 6 Gases Learning Targets (Your exam at the end of Unit 6 will assess the following:) 6. Gases 61. Define pressure using a mathematical equation. 62. Perform calculations involving pressure,
More information1. [Chang7 5.P.013.] Convert 295 mmhg to kpa. kpa Convert 2.0 kpa to mmhg. mmhg
Score 1. [Chang7 5.P.013.] Convert 295 mmhg to kpa. kpa Convert 2.0 kpa to mmhg. mmhg 2. [Chang7 5.P.019.] The volume of a gas is 5.80 L, measured at 1.00 atm. What is the pressure of the gas in mmhg if
More informationHomework of chapter (3)
The Islamic University of Gaza, Civil Engineering Department, Fluid mechanicsdiscussion, Instructor: Dr. Khalil M. Al Astal T.A: Eng. Hasan Almassri T.A: Eng. Mahmoud AlQazzaz First semester, 2013. Homework
More informationHydraulic/Pneumatic System
Includes Teacher's Notes and Typical Experiment Results Instruction Manual and Experiment Guide for the PASCO scientific Model SE8764 01207733A Hydraulic/Pneumatic System 2000 PASCO scientific Copyright,
More informationBernoulli's Principle
Bernoulli's Principle Bernoulli's Principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases. Introduction The Bernoulli's Principle explains the behavior of
More informationChapter 13: The Behavior of Gases
Chapter 13: The Behavior of Gases I. First Concepts a. The 3 states of matter most important to us: solids, liquids, and gases. b. Real Gases and Ideal Gases i. Real gases exist, ideal gases do not ii.
More informationWrite important assumptions used in derivation of Bernoulli s equation. Apart from an airplane wing, give an example based on Bernoulli s principle
HW#3 Sum07 #1. Answer in 4 to 5 lines in the space provided for each question: (a) A tank partially filled with water has a balloon well below the free surface and anchored to the bottom by a string. The
More informationAn underwater explosion is an explosion where the point of detonation is below the surface of the water.
Underwater Explosion 1 Introduction An underwater explosion is an explosion where the point of detonation is below the surface of the water. Underwater explosion are categorized in accordance with their
More informationKineticMolecular Theory of Matter
Gases Properties of Gases Gas Pressure Gases What gases are important for each of the following: O 2, CO 2 and/or He? A. B. C. D. 1 2 Gases What gases are important for each of the following: O 2, CO 2
More informationTEST FOR STABILOMETER VALUE OF BITUMINOUS MIXTURES
Test Procedure for TEST FOR STABILOMETER VALUE OF BITUMINOUS MIXTURES TxDOT Designation: Tex208F Effective Date: February 2005 1. SCOPE 1.1 Use this test method to determine the Hveem stability value
More informationEnergy: Part 4. Water distribution. water tower. Bernoulli and Water distribution systems Physics 1010: Dr. Eleanor Hodby
Energy: Part 4 ernoulli and Water distribution systems Physics 11: Dr. Eleanor odby Water distribution water tower reservoir pipe pump buildings Lecture 1:  Water distribution Reminders: W5 due Friday
More informationChapter 18. The KineticMolecular Theory The Three States of Matter. Lesson Objectives. Introduction
Chapter 18 The KineticMolecular Theory 18.1 The Three States of Matter Lesson Objectives The student will describe molecular arrangement differences among solids, liquids, and gases. The student will
More informationThe Ideal Gas Constant
Chem 2115 Experiment # 8 The Ideal Gas Constant OBJECTIVE: This experiment is designed to provide experience in gas handling methods and experimental insight into the relationships between pressure, volume,
More information