L 13 Fluid Statics [2] More on fluids. How can a steel boat float. A ship can float in a cup of water! Today s weather

Size: px
Start display at page:

Download "L 13 Fluid Statics [2] More on fluids. How can a steel boat float. A ship can float in a cup of water! Today s weather"

Transcription

1 L 13 Fluid Statics [2] More on fluids. How can a steel boat float. A ship can float in a cup of water! Today s weather

2 The deeper you go the higher the pressure P Top A hypothetical volume of water inside a larger volume. P Bottom A W

3 Forces in a STATIC fluid (at rest) H F BOTTOM F TOP A W W is the weight = mg of this volume F TOP is the force on the top of the volume exerted by the fluid above it pushing down F BOTTOM is the force on the volume due to the fluid below it pushing up For this volume not to move (Static fluid) we must have that F BOTTOM = F TOP + mg

4 Variation of pressure with depth F BOTTOM -F TOP = mg = (density x Vol) x g RHO F BOTTOM -F TOP = ρ A H g Since pressure is Force / area, Force = P x A P Bottom A P Top A = ρ A H g, or P Bottom P Top = ρ H g, The pressure below is greater than the pressure above.

5 How much does P increase At the surface of a body of water the pressure is 1 atm = 100,000 Pa h As we go down into the water, at what depth does the pressure double, from 1 atm to 2 atm or 200,000 Pa Want ρ g h = 100,000 Pa 1000 kg/m 3 x 10 x h = 100,000 So h = 10 meters or about 30 feet 100,000 Pa

6 this layer of fluid must support all the fluid above it the block on the bottom supports all the blocks above it

7 Measuring atmospheric pressure - Barometers Inverted closed tube filled with liquid P ATM P ATM The column of liquid is held up by the pressure of the liquid in the tank. Near the surface this pressure is atmospheric pressure, so the atmosphere holds the liquid up. P liquid

8 Barometric pressure Atmospheric pressure can support a column of water 10.3 m high, or a column of mercury (which is 13.6 times as dense as water) 30 inches high the mercury barometer Today s weather

9 Pascal s Vases The fluid levels are the same in all each tube irrespective of their shape

10 Pressure depends only on depth Dam The pressure at the bottom of the lake is higher than at the top The dam must be thicker at its base The pressure does not depend on how far back the lake extends

11 Blood Pressure The blood pressure in your feet can be greater than the blood pressure in your head depending on whether a person is standing or reclining

12 Water pumps A ground level pump can only be used to cause water to rise to a certain maximum height since it uses atmospheric pressure to lift the water for deeper wells the pump must be located at the bottom

13 Pascal s Principle If you apply pressure to an enclosed fluid, that pressure is transmitted equally to all parts of the fluid If I exert extra pressure on the fluid with a piston, the pressure in the fluid increases everywhere by that amount Cartesian diver

14 A hydraulic car lift Pressure is F x A At the same depth the pressures are the same so F 1 /A 1 = F 2 /A 2, or A F F A 2 = with a little force you can lift a heavy object! the jack

15 Buoyancy why things float The trick is to keep the water on the outside of the ship, and to avoid hitting icebergs (which also float), and are easy to miss since 90 % of it is submerged.

16 Buoyant Force submerged object that has a mass density ρ O P Top A h P Bottom A W The density of the water is ρ W

17 Buoyant force The water pushes down on the top of the object, and pushes up on the bottom of the object The difference between the upward force and the downward force is the buoyant force F B since the pressure is larger on the bottom the buoyant force is UP

18 Archimedes principle the pressure difference is ρ W g h, so the buoyant force is F B = P x A = ρ W g h A = ρ W g (volume of object) = ρ W (volume of object) g h = mass of displaced water x g weight of displaced water This is Archimedes principle A object

19 Will it float? The object will float if the buoyant force is enough to support the object s weight The object will displace just enough water so that the buoyant force = its weight If it displaces as much water as possible and this does not match its weight, it will sink. Objects that have a density less than water will always float.

20 Floating objects lighter object heavier object

21 Oil Tankers empty tanker full tanker

PHYS:1200 LECTURE 13 FLUIDS (2)

PHYS:1200 LECTURE 13 FLUIDS (2) 1 PHYS:1200 LECTURE 13 FLUIDS (2) Lecture 13 deals with the properties of fluids at rest or fluid statics. We will be discussing mostly liquids and will introduce two important principles of fluid statics:

More information

Chapter 13 Fluids. Copyright 2009 Pearson Education, Inc.

Chapter 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 information

Lecture 29 (Walker: ) Fluids II April 13, 2009

Lecture 29 (Walker: ) Fluids II April 13, 2009 Physics 111 Lecture 29 (Walker: 15.3-4) Fluids II April 13, 2009 Lecture 29 1/32 Pressure in Fluids Pressure is the same in every direction in a fluid at a given depth; if it were not, the fluid would

More information

Notes Chapter 3. Buoyancy

Notes Chapter 3. Buoyancy Notes Chapter 3 Buoyancy Pressure in a Fluid 3.2 Pressure and the Buoyant Forces Liquids and gases are fluids materials that can flow and have no definite shape. Objects in a fluid experience a buoyant

More information

Force Pressure = Area

Force Pressure = Area Topics Pressure Liquids Buoyancy Archimedes Principle Flotation Pascal;s Principle Surface Tension Capillarity Pressure Force Pressure = Area Which has the greatest pressure? Units: N/m 2 -- named the

More information

Phys101 Lectures Fluids I. Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle. Ref: 10-1,2,3,4,5,6,7.

Phys101 Lectures Fluids I. Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle. Ref: 10-1,2,3,4,5,6,7. Phys101 Lectures 21-22 Fluids I Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle Ref: 10-1,2,3,4,5,6,7. Page 1 10-1 Phases of Matter The three common phases of matter are solid,

More information

Fluid Mechanics. Liquids and gases have the ability to flow They are called fluids There are a variety of LAWS that fluids obey

Fluid 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 information

PRESSURE. 7. Fluids 2

PRESSURE. 7. Fluids 2 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

More information

Density and Specific Gravity

Density and Specific Gravity Fluids Phases of Matter Matter is anything that has mass and takes up space (volume). The three common phases of matter are solid, liquid, and gas. A solid has a definite shape and size. A liquid has a

More information

Chapter 10 Fluids. Which has a greater density? Ch 10: Problem 5. Ch 10: Problem Phases of Matter Density and Specific Gravity

Chapter 10 Fluids. Which has a greater density? Ch 10: Problem 5. Ch 10: Problem Phases of Matter Density and Specific Gravity Chapter 10 Fluids 10-1 Phases of Matter The three common phases of matter are solid, liquid, and gas. A solid has a definite shape and size. A liquid has a fixed volume but can be any shape. A gas can

More information

Vacuum P=0. h=76 cm A B C. Barometer

Vacuum P=0. h=76 cm A B C. Barometer Recap: Pressure Pressure = Force per unit area (P = F /A; units: Pascals) Density of object = mass / volume (ρ = m /V; units: kg / m 3 ) Pascal s Law:Pressure is transmitted equally in all directions throughout

More information

Lecture 19 Fluids: density, pressure, Pascal s principle and Buoyancy.

Lecture 19 Fluids: density, pressure, Pascal s principle and Buoyancy. Lecture 19 Water tower Fluids: density, pressure, Pascal s principle and Buoyancy. Hydraulic press Pascal s vases Barometer What is a fluid? Fluids are substances that flow. substances that take the shape

More information

Fluids Pascal s Principle Measuring Pressure Buoyancy

Fluids Pascal s Principle Measuring Pressure Buoyancy Fluids Pascal s Principle Measuring Pressure Buoyancy Lana Sheridan De Anza College April 11, 2018 Last time shear modulus introduction to static fluids pressure bulk modulus pressure and depth Overview

More information

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 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 information

In 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. 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 information

Unit 1 Lesson 5 Fluids and Pressure. Copyright Houghton Mifflin Harcourt Publishing Company

Unit 1 Lesson 5 Fluids and Pressure. Copyright Houghton Mifflin Harcourt Publishing Company Feel the Pressure! What are fluids? A fluid is any material that can flow and that takes the shape of its container. A fluid can flow because its particles easily move past each other. Liquids and gases,

More information

PHYSICS - CLUTCH CH 17: FLUID MECHANICS.

PHYSICS - CLUTCH CH 17: FLUID MECHANICS. !! www.clutchprep.com INTRO TO DENSITY LIQUIDS and GASES are types of. So we use the term to refer generally to both Liquids AND Gases. The DENSITY of a material is a measure of how tight the molecules

More information

HW #10 posted, due Thursday, Dec 2, 11:59 p.m. (last HW that contributes to the final grade)

HW #10 posted, due Thursday, Dec 2, 11:59 p.m. (last HW that contributes to the final grade) HW #10 posted, due Thursday, Dec 2, 11:59 p.m. (last HW that contributes to the final grade) Last Lecture Class: States/Phases of Matter, Deformation of Solids, Density, Pressure Today: Pressure vs. Depth,

More information

More About Solids, Liquids and Gases ASSIGNMENT

More 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 information

Lecture 20. Static fluids

Lecture 20. Static fluids Lecture 20 Static fluids Today s Topics: Density Pressure, Depth and Pressure Gauges Pascal s Principle Archimedes Principle Solids and Fluids Solids Maintain their shape. Generally don t flow Limited

More information

28 multiple choice, 4 wrong answers will be dropped Covers everything learned in Phys 105 and 106

28 multiple choice, 4 wrong answers will be dropped Covers everything learned in Phys 105 and 106 Final exam 2:30-5:00 pm, Tuesday 5/10/2011 FMH 310 28 multiple choice, 4 wrong answers will be dropped Covers everything learned in Phys 105 and 106 About 7 problems from Phys 105 About 8-9 problems are

More information

PHYS 101 Previous Exam Problems

PHYS 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 information

Pressure is defined as force per unit area. Any fluid can exert a force

Pressure 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 information

L-14 Fluids [3] Buoyancy why things float. Buoyant Force F B. Archimedes principle. Archimedes Principle

L-14 Fluids [3] Buoyancy why things float. Buoyant Force F B. Archimedes principle. Archimedes Principle Buoyancy why things float L-14 Fluids [3] Review fluid statics Pascal s Principle hy things float Fluids in Motion Fluid Dynamics Hydrodynamics Aerodynamics TITANIC The trick is to keep the water on the

More information

Chapter 9. Forces and Fluids

Chapter 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 information

Chapter 9 Fluids and Buoyant Force

Chapter 9 Fluids and Buoyant Force Chapter 9 Fluids and Buoyant Force In Physics, liquids and gases are collectively called fluids. 3/0/018 8:56 AM 1 Fluids and Buoyant Force Formula for Mass Density density mass volume m V water 1000 kg

More information

Concept of Fluid. Density. Pressure: Pressure in a Fluid. Pascal s principle. Buoyancy. Archimede s Principle. Forces on submerged surfaces

Concept of Fluid. Density. Pressure: Pressure in a Fluid. Pascal s principle. Buoyancy. Archimede s Principle. Forces on submerged surfaces FLUID MECHANICS The fluid essential to all life has a beauty of its own. It also helps support the weight of this swimmer. (credit: Terren, Wikimedia Commons) Concept of Fluid Density Pressure: Pressure

More information

Physics 221, March 1. Key Concepts: Density and pressure Buoyancy Pumps and siphons Surface tension

Physics 221, March 1. Key Concepts: Density and pressure Buoyancy Pumps and siphons Surface tension Physics 221, March 1 Key Concepts: Density and pressure Buoyancy Pumps and siphons Surface tension Fluids: Liquids Incompressible Gases Compressible Definitions Particle density: Density: Pressure: ρ particle

More information

Grade 8 Science: Unit 2-Fluids Chapter 9: Force, Pressure Area

Grade 8 Science: Unit 2-Fluids Chapter 9: Force, Pressure Area Grade 8 Science: Unit 2-Fluids Chapter 9: Force, Pressure Area Key Terms: hydraulic systems, incompressible, mass, neutral buoyancy, pascal, pneumatic systems, pressure, unbalanced forces, weight, Archimedes

More information

PRESSURE AND BUOYANCY

PRESSURE AND BUOYANCY PRESSURE AND BUOYANCY CONCEPT SUMMARY So far The pressure applied to a confined liquid is transmitted to every point in the liquid (Pascal's Principle). At any given point in a liquid the pressure is the

More information

Science 8 Chapter 9 Section 1

Science 8 Chapter 9 Section 1 Science 8 Chapter 9 Section 1 Forces and Buoyancy (pp. 334-347) Forces Force: anything that causes a change in the motion of an object; a push or pull on an object balanced forces: the condition in which

More information

Unit 7. Pressure in fluids

Unit 7. Pressure in fluids -- Unit 7. Pressure in fluids Index 1.- Pressure...2 2.- Fluids...2 3.- Pressure in fluids...3 4.- Pascal's principle...5 5.- Archimedes principle...6 6.- Atmospheric pressure...7 6.1.- Torricelli and

More information

Name Class Date. (pp ) Write the letter of the correct answer in the space provided.

Name Class Date. (pp ) Write the letter of the correct answer in the space provided. Skills Worksheet Directed Reading A Section: Buoyancy and Density (pp. 412 419) 1. What is the upward force that fluids exert on all matter called? a. pascal force b. atmospheric pressure c. buoyant force

More information

Ch. 4 Motion in One direction Ch 6. Pressure in Fluids and Atmospheric Pressure Ch. 7. Up-thrust in Fluids Ch. 8. Floatation and Relative Density

Ch. 4 Motion in One direction Ch 6. Pressure in Fluids and Atmospheric Pressure Ch. 7. Up-thrust in Fluids Ch. 8. Floatation and Relative Density Ch. 4 Motion in One direction Ch 6. Pressure in Fluids and Atmospheric Pressure Ch. 7. Up-thrust in Fluids Ch. 8. Floatation and Relative Density Physics Class 9 th Copyright 10x10learning.com 1 Acceleration

More information

Take the challenge exam!

Take the challenge exam! Take the challenge exam! Today is the last day to take it! Read the book Focus on new concepts Answer the questions at the end of each chapter Vocabulary test #1 deadline: Friday 25 Sept. First exam deadline:

More information

Chapter 15 Fluid. Density

Chapter 15 Fluid. Density Density Chapter 15 Fluid Pressure Static Equilibrium in Fluids: Pressure and Depth Archimedes Principle and Buoyancy Applications of Archimedes Principle By Dr. Weining man 1 Units of Chapter 15 Fluid

More information

1. All fluids are: A. gases B. liquids C. gases or liquids D. non-metallic E. transparent ans: C

1. All fluids are: A. gases B. liquids C. gases or liquids D. non-metallic E. transparent ans: C Chapter 14: FLUIDS 1 All fluids are: A gases B liquids C gases or liquids D non-metallic E transparent 2 Gases may be distinguished from other forms of matter by their: A lack of color B small atomic weights

More information

Fluids, Pressure and buoyancy

Fluids, 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 information

Fluids always move from high pressure to low pressure. Air molecules pulled by gravity = atmospheric pressure

Fluids always move from high pressure to low pressure. Air molecules pulled by gravity = atmospheric pressure 9.1 Fluids Under Pressure Fluids always move from high pressure to low pressure w Fluids under pressure and compressed gases are used for a variety of everyday tasks Air molecules pulled by gravity = atmospheric

More information

Phys101 Lectures Fluids I. Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle. Ref: 10-1,2,3,4,5,6,7.

Phys101 Lectures Fluids I. Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle. Ref: 10-1,2,3,4,5,6,7. Phys101 Lectures 24-25 luids I Key points: Pressure and Pascal s Principle Buoyancy and Archimedes Principle Ref: 10-1,2,3,4,5,6,7. Page 1 10-1 Phases of Matter The three common phases of matter are solid,

More information

Density. Chapters 12-14: Phases of Matter. Example: Density. Conceptual Check. Springs 2/27/12. Mass Density vs. Weight Density

Density. Chapters 12-14: Phases of Matter. Example: Density. Conceptual Check. Springs 2/27/12. Mass Density vs. Weight Density Chapters 12-14: Phases of Matter Density Sequence of increasing molecule motion (and kinetic energy) Solid Liquid Gas The densities of most liquids and solids vary slightly with changes in temperature

More information

Fluids Pascal s Principle Measuring Pressure Buoyancy

Fluids Pascal s Principle Measuring Pressure Buoyancy Fluids Pascal s Principle Measuring Pressure Buoyancy Lana Sheridan De Anza College April 11, 2018 Last time shear modulus s introduction to static fluids pressure bulk modulus pressure and depth re at

More information

Fluid Mechanics - Hydrostatics. Sections 11 5 and 6

Fluid Mechanics - Hydrostatics. Sections 11 5 and 6 Fluid Mechanics - Hydrostatics Sections 11 5 and 6 A closed system If you take a liquid and place it in a system that is CLOSED like plumbing for example or a car s brake line, the PRESSURE is the same

More information

Section 3: Fluids. States of Matter Section 3. Preview Key Ideas Bellringer Pressure

Section 3: Fluids. States of Matter Section 3. Preview Key Ideas Bellringer Pressure Section 3: Fluids Preview Key Ideas Bellringer Pressure Buoyant Force Comparing Weight and Buoyant Force Pascal s Principle Math Skills Fluids in Motion Key Ideas How do fluids exert pressure? What force

More information

Old-Exam.Questions-Ch-14 T072 T071

Old-Exam.Questions-Ch-14 T072 T071 Old-Exam.Questions-Ch-14 T072 Q23. Water is pumped out of a swimming pool at a speed of 5.0 m/s through a uniform hose of radius 1.0 cm. Find the mass of water pumped out of the pool in one minute. (Density

More information

Density and Buoyancy Notes

Density 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 information

From and

From  and From http://www.school-for-champions.com/science/fluidpressure.htm and http://www.school-forchampions.com/science/fluidfloating.htm by Ron Kurtus, School for Champions Pressure in Fluids by Ron Kurtus

More information

Properties of Fluids. How do ships float?

Properties of Fluids. How do ships float? How do ships float? Despite their weight ships are able to float. This is because a greater force pushing up on the ship opposes the weight or force of the ship pushing down. How do ships float? This supporting

More information

PHY131H1S - Class 23. Today: Fluids Pressure Pascal s Law Gauge Pressure Buoyancy, Archimedes Principle. A little pre-class reading quiz

PHY131H1S - Class 23. Today: Fluids Pressure Pascal s Law Gauge Pressure Buoyancy, Archimedes Principle. A little pre-class reading quiz PHY131H1S - Class 23 Today: Fluids Pressure Pascal s Law Gauge Pressure Buoyancy, Archimedes Principle Archimedes (287-212 BC) was asked to check the amount of silver alloy in the king s crown. The answer

More information

DENSITY AND BUOYANCY

DENSITY AND BUOYANCY DENSITY AND BUOYANCY DENSITY - RECAP What is DENSITY? The amount of MASS contained in a given VOLUME Density describes how closely packed together the particles are in a substance Density Experiment SINK

More information

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. 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 information

Chapter 14 Fluids Mass Density Pressure Pressure in a Static Fluid Pascal's Principle Archimedes' Principle

Chapter 14 Fluids Mass Density Pressure Pressure in a Static Fluid Pascal's Principle Archimedes' Principle Chapter 14 Fluids Mass Density Pressure Pressure in a Static Fluid Pascal's Principle Archimedes' Principle Fluids in Motion The Equation of Continuity DEFINITION OF MASS DENSITY The mass density ρ is

More information

Name. Student I.D.. Section:. Use g = 10 m/s 2

Name. Student I.D.. Section:. Use g = 10 m/s 2 Prince Sultan University Department of Mathematics & Physics SCI 101- General Sciences Second Exam Second Semester, Term 142 Wednesday 22/4/2015 Examination Time : 60 minutes Name. Student I.D.. Section:.

More information

Pressure and Depth. In a static, non-moving fluid

Pressure and Depth. In a static, non-moving fluid Pressure and Depth In a static, non-moving fluid Static Fluids Being on the surface of the earth, you can say that we dwell on the bottom of an ocean of air. The pressure we experience is primarily caused

More information

Hydrostatics. Physics 1425 Lecture 25. Michael Fowler, UVa

Hydrostatics. Physics 1425 Lecture 25. Michael Fowler, UVa Hydrostatics Physics 1425 Lecture 25 Michael Fowler, UVa Basic Concepts Density Pressure: Pascal s Principle The Crown and the Bathtub Around 250 BC, the king of Syracuse commissioned a new crown,and gave

More information

17.2 and 17.3 Classifying Matter Liquids. Liquids

17.2 and 17.3 Classifying Matter Liquids. Liquids 17.2 and 17.3 Classifying Matter Liquids Read p.295-301 in book Liquids Liquids have an indefinite shape, but a definite volume. the same shape as their container. particles that are close together, but

More information

Chapter 3: Fluid Statics. 3-1 Pressure 3-2 Fluid Statics 3-3 Buoyancy and Stability 3-4 Rigid-Body Motion

Chapter 3: Fluid Statics. 3-1 Pressure 3-2 Fluid Statics 3-3 Buoyancy and Stability 3-4 Rigid-Body Motion 3-1 Pressure 3-2 Fluid Statics 3-3 Buoyancy and Stability 3-4 Rigid-Body Motion Chapter 3 Fluid Statics 3-1 Pressure (1) Pressure is defined as a normal force exerted by a fluid per unit area. Units of

More information

Fluid Statics. AP Physics 2

Fluid Statics. AP Physics 2 Fluid Statics AP Physics 2 States of Matter Before we begin to understand the nature of a Fluid we must understand the nature of all the states of matter: The 3 primary states of matter - solid - Definite

More information

Properties of Fluids SPH4C

Properties of Fluids SPH4C Properties of Fluids SPH4C Fluids Liquids and gases are both fluids: a fluid is any substance that flows and takes the shape of its container. Fluids Liquids and gases are both fluids: a fluid is any substance

More information

Dec 6 3:08 PM. Density. Over the last two periods we discussed/observed the concept of density. What have we learned?

Dec 6 3:08 PM. Density. Over the last two periods we discussed/observed the concept of density. What have we learned? Over the last two periods we discussed/observed the concept of density. What have we learned? is a ratio of mass to volume describes how much matter is packed into a space is a property of both solids

More information

Unit A: Mix and Flow of Matter

Unit 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 information

Example A: A 400-N force is applied to a tabletop over a square area with side-length L = 20-cm.

Example A: A 400-N force is applied to a tabletop over a square area with side-length L = 20-cm. Physics 17 Part H Fluids and Pressure Uni-Directional Pressure The pressure that is applied over an area is the force applied, divided by the area. A 400-N force is applied to a tabletop over a square

More information

Review: Fluids. container into which it has been poured. changes gases are compressible. pressure changes

Review: Fluids. container into which it has been poured. changes gases are compressible. pressure changes Forces in Fluids Review: Fluids o A fluid is a substance that is able to flow and assume the form of the container into which it has been poured o A compressible fluid is one that can change its volume

More information

Chapter 13 Fluids. Copyright 2009 Pearson Education, Inc.

Chapter 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 information

L-14 Fluids [3] Fluids in Motion Fluid Dynamics Hydrodynamics Aerodynamics

L-14 Fluids [3] Fluids in Motion Fluid Dynamics Hydrodynamics Aerodynamics L-14 Fluids [3] Fluids in Motion Fluid Dynamics Hydrodynamics Aerodynamics Archimedes Principle F B W A buoyant force F B equal to the weight of displaced water is exerted on a submerged object. Will it

More information

Fluids: Floating & Flying. Student Leaning Objectives 2/16/2016. Distinguish between force and pressure. Recall factors that allow floating

Fluids: 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 information

Clicker Question: Clicker Question: Clicker Question: Phases of Matter. Phases of Matter and Fluid Mechanics

Clicker Question: Clicker Question: Clicker Question: Phases of Matter. Phases of Matter and Fluid Mechanics Newton's Correction to Kepler's First Law The orbit of a planet around the Sun has the common center of mass (instead of the Sun) at one focus. A flaw in Copernicus s model for the solar system was A:

More information

Float a Big Stick. To investigate how objects float by analyzing forces acting on a floating stick

Float a Big Stick. To investigate how objects float by analyzing forces acting on a floating stick Chapter 19: Liquids Flotation 53 Float a Big Stick Purpose To investigate how objects float by analyzing forces acting on a floating stick Required Equipment/Supplies Experiment vernier calipers 250-mL

More information

Chapter 14. Fluids. A fluid a substance that can flow (in contrast to a solid)

Chapter 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 information

CARTESIAN DIVER (1 Hour)

CARTESIAN DIVER (1 Hour) (1 Hour) Addresses NGSS Level of Difficulty: 2 Grade Range: K-2 OVERVIEW In this activity, students will build a Cartesian diver and discover how compression and changes in density cause the diver to mysteriously

More information

Density, Pressure Learning Outcomes

Density, Pressure Learning Outcomes Density, Pressure Learning Outcomes Define density and pressure, and give their units. Solve problems about density and pressure. Discuss pressure in liquids and gases. State Boyle s Law. Demonstrate atmospheric

More information

This Week.

This Week. This Week http://wimp.com/slinkyanswer/ Liquids and Gases Pressure How do they lift your car for service? Atmospheric pressure We re submerged! How can you drink a Coke? Archimedes! Eureka!!! Balloons

More information

Fluids. How do fluids exert pressure? What causes objects to float? What happens when pressure in a fluid changes? What affects the speed of a fluid?

Fluids. How do fluids exert pressure? What causes objects to float? What happens when pressure in a fluid changes? What affects the speed of a fluid? CHAPTER 3 SECTION 3 States of Matter Fluids KEY IDEAS As you read this section, keep these questions in mind: How do fluids exert pressure? What causes objects to float? What happens when pressure in a

More information

Boy, Oh Buoyancy. Does it Float? Does it Sink?

Boy, Oh Buoyancy. Does it Float? Does it Sink? Boy, Oh Buoyancy Does it Float? Does it Sink? What is density? A measure of how much material is packed into a unit volume of the material The fewer particles packed into a given volume, the less dense

More information

Lesson 12: Fluid statics, Continuity equation (Sections ) Chapter 9 Fluids

Lesson 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 information

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

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 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 information

Fluid Mechanics - Hydrostatics. AP Physics B

Fluid 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 information

Static Fluids. **All simulations and videos required for this package can be found on my website, here:

Static Fluids. **All simulations and videos required for this package can be found on my website, here: DP Physics HL Static Fluids **All simulations and videos required for this package can be found on my website, here: http://ismackinsey.weebly.com/fluids-hl.html Fluids are substances that can flow, so

More information

Slide 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 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 information

3. A fluid is forced through a pipe of changing cross section as shown. In which section would the pressure of the fluid be a minimum?

3. A fluid is forced through a pipe of changing cross section as shown. In which section would the pressure of the fluid be a minimum? AP Physics Multiple Choice Practice Fluid Mechanics 1. A cork has weight mg and density 5% of water s density. A string is tied around the cork and attached to the bottom of a water-filled container. The

More information

Chapter 15 Fluids. Copyright 2010 Pearson Education, Inc.

Chapter 15 Fluids. Copyright 2010 Pearson Education, Inc. Chapter 15 Fluids Density Units of Chapter 15 Pressure Static Equilibrium in Fluids: Pressure and Depth Archimedes Principle and Buoyancy Applications of Archimedes Principle Fluid Flow and Continuity

More information

The density of a substance is the same for all samples of that substance.

The density of a substance is the same for all samples of that substance. 8.8.a Density and Buoyancy Students know density is mass per unit volume. P71 Wood Steel The density of a substance is the same for all samples of that substance. 1. The two blocks shown have the same

More information

Additional Information

Additional Information Buoyancy Additional Information Any object, fully or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. Archimedes of Syracuse Archimedes principle

More information

1/4/18. Density. Density. Density

1/4/18. Density. Density. Density Density Density Important property of materials (solids, liquids, gases) Measure of compactness of how much mass an object occupies "lightness" or "heaviness" of materials of the same size Density Equation:

More information

Conceptual Physics Matter Liquids Gases

Conceptual Physics Matter Liquids Gases Conceptual Physics Matter Liquids Gases Lana Sheridan De Anza College July 25, 2017 Last time atomic structure forms of matter solids density elasticity liquids & pressure Overview liquids pressure surface

More information

AP Physics B Ch 10 Fluids. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

AP Physics B Ch 10 Fluids. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Name: Period: Date: AP Physics B Ch 10 Fluids 1) The three common phases of matter are A) solid, liquid, and vapor. B) solid, plasma, and gas. C) condensate, plasma, and gas. D) solid, liquid, and gas.

More information

Hydrostatic pressure Consider a tank of fluid which contains a very thin plate of (neutrally buoyant) material with area A. This situation is shown in Figure below. If the plate is in equilibrium (it does

More information

Density, Pressure Learning Outcomes

Density, Pressure Learning Outcomes 1 Density, Pressure Learning Outcomes Define density and pressure, and give their units. Solve problems about density and pressure. Discuss pressure in liquids and gases. State Boyle s Law. Demonstrate

More information

Liquids and Gases. 2/26/2012 Physics 214 Fall

Liquids and Gases. 2/26/2012 Physics 214 Fall 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. Other everyday units are gallons, quarts, pints As we know liquids and gases act

More information

8 th week Lectures Feb. 26. March

8 th week Lectures Feb. 26. March Liquids and Gases Pressure, Pascal s principle How do they lift your car for service? Atmospheric pressure We re submerged! How can you drink a Coke? Archimedes! Balloons of all sizes Bubbles of all sizes

More information

Chapter 10. When atmospheric pressure increases, what happens to the absolute pressure at the bottom of a pool?

Chapter 10. When atmospheric pressure increases, what happens to the absolute pressure at the bottom of a pool? When atmospheric pressure increases, what happens to the absolute pressure at the bottom of a pool? A) It does not change B) It increases by an amount less than the atmospheric change. C) It increases

More information

ConcepTest PowerPoints

ConcepTest 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 information

Exercises The Atmosphere (page 383) 20.2 Atmospheric Pressure (pages )

Exercises 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 information

Physics General Physics. Lecture 19 - Fluids. Fall 2016 Semester Prof. Matthew Jones

Physics General Physics. Lecture 19 - Fluids. Fall 2016 Semester Prof. Matthew Jones Physics 22000 General Physics Lecture 19 - Fluids Fall 2016 Semester Prof. Matthew Jones 1 2 What s New This Time? Previously, we had ignored the effect of gravity on the gas particles that were described

More information

Chapter 9 Solids and Fluids

Chapter 9 Solids and Fluids 2/17/16 Chapter 9 Solids and Fluids Units of Chapter 9 Solids and Elastic Moduli Fluids: Pressure and Pascal s Buoyancy and Archimedes Fluid Dynamics and Bernoulli s Surface Tension, Viscosity, and Poiseuille

More information

Page 1

Page 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 information

. In an elevator accelerating upward (A) both the elevator accelerating upward (B) the first is equations are valid

. In an elevator accelerating upward (A) both the elevator accelerating upward (B) the first is equations are valid IIT JEE Achiever 2014 Ist Year Physics-2: Worksheet-1 Date: 2014-06-26 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 information

Hydrostatics Physics Lab XI

Hydrostatics Physics Lab XI Hydrostatics Physics Lab XI Objective Students will discover the basic principles of buoyancy in a fluid. Students will also quantitatively demonstrate the variance of pressure with immersion depth in

More information

Assistant Lecturer Anees Kadhum AL Saadi

Assistant 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 information

Motion, Forces, and Energy Revision (Chapters 3+4)

Motion, Forces, and Energy Revision (Chapters 3+4) Motion, Forces, and Energy Revision (Chapters 3+4) What is force? The force exerted on a surface divided by the total area over which the force is exerted. What is the link between pressure & area? Pressure

More information