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

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

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

Transcription

1 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 and Bernoulli s principle. How is pressure different from force? Pressure is determined from how the force is distributed. P = F A 1

2 1) Why do large trucks have so many tires? 2) Which would result in the greater pressure on your bare foot? a) A 150 pound person steps on your foot with her bare foot. b) A 150 pound person steps on your foot with a spike heal. 3) What is psi? Where do we typically measure pressure in psi? What determines the amount of pressure in a fluid? In a fluid, pressure is exerted in all directions. Fluid pressure depends on density and depth. P = Dgh Same Depth = Same Pressure The normal atmospheric pressure at sea level is 1 atmosphere. 1 atm = 14.7 lbs/in 2 = x 10 5 N/m 2 The pressure in water (pure or sea) increases by about 1 atm for every 10 m of depth. 1) How much pressure would a scuba diver experience 5 meters down in water? 2) Where would the air pressure be greater, Denver, CO (elevation 5000 ft) or at the beach in California (elevation 0 ft)? Why? 2

3 What factors allow floating? Relative density allows objects or substances to float. Density is the amount of mass contained in a standard volume. D = m V Density measures how compact the material is. Example: Golf Ball vs Ping Pong Ball Air D = g/cm 3 Water D = 1 g/cm 3 Sea Water D = g/cm 3 Steal D = 7.85 g/cm 3 Lead D = g/cm 3 Gold D = 19.3 g/cm 3 A single gold bar from Fort Knox measures cm, 9.21 cm, and 4.45 cm. How many of these gold bars do you think you could carry? Displacement of water allows objects float. (Archimedes Principle) The buoyancy force is equal to the weight of the fluid displaced by the object. F B = W fluid Weight of Floating Object = Weight of Fluid Displaced 3

4 The upward buoyancy force is a result of the net upward pressure from the fluid. 500,000 Ton Ship = 500,000 Tons Water Displaced Largest Pressure vector from greatest depth Pressures are balanced when a steel ship floats in water. P water = P boat 1) A helium balloon that is released into the sky will rise for a time, and then maintain the same altitude as it travels away from you. Why does it have this motion? 2) My body displaces the same volume of air as water; however I do not float in air. Why? 3) Two ships of equal mass are made of the same material, but have different shapes. Both ships are floating in water. 1 2 a) Is the buoyancy force greater on ship 1 or ship 2? b) Which ship s square cargo area sits higher on the water? c) Which ship can carry more people? 4) A toy boat weighs 20 lbs (89 N) and floats in fresh water. The boat has a flat bottom that measures 50 cm by 20 cm. a) What is the buoyant force on the boat? b) What does the water weigh that is displaced by the boat? c) What is the height of the water line on the boat? 4

5 Surface tension allows objects to float on top of a fluid. Polar molecules Electrical Attractions Cohesion is the attraction between like molecules in a fluid. (water and water) Adhesion is an attraction between unlike molecules. (water and glass) Cohesive forces are strongest at the surface (surface tension). Example: Overfull glass of water How are Pascal s principle and Bernoulli s principle used? Pascal s Principle: A change in pressure at any point in an enclosed fluid is exerted on all other parts of the fluid. A force on an enclosed fluid is distributed throughout the fluid. Examples: Closed water bottle Hydraulic lifts & Pistons The pressure is equal on both sides of a piston; however, the Force and Area are different. small force on small area = Large Force on Large Area 5

6 Bernoulli s Principle: As the velocity of the fluid increases, the pressure within the fluid decreases. There is a change in pressure when a fluid flows, or an object moves through the fluid. (excludes barriers) Examples: Trucks, Trains, & Airplanes 6

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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 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 The deeper you go the higher the pressure P Top A hypothetical volume of water inside

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

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

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

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

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

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

Fluid Mechanics. Chapter 14. PowerPoint Lectures for University Physics, Twelfth Edition Hugh D. Young and Roger A. Freedman. Lectures by James Pazun

Fluid Mechanics. Chapter 14. PowerPoint Lectures for University Physics, Twelfth Edition Hugh D. Young and Roger A. Freedman. Lectures by James Pazun Chapter 14 Fluid Mechanics PowerPoint Lectures for University Physics, Twelfth Edition Hugh D. Young and Roger A. Freedman Lectures by James Pazun Goals for Chapter 14 To study density and pressure To

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

Chapter Five: Density and Buoyancy

Chapter Five: Density and Buoyancy Chapter Five: Density and Buoyancy 5.1 Density 5.2 Buoyancy 5.3 Heat Affects Density and Buoyancy 5.1 Mass and Weight Mass is the amount of matter in an object. Weight is a measure of the pulling force

More information

Types of Forces. Pressure Buoyant Force Friction Normal Force

Types of Forces. Pressure Buoyant Force Friction Normal Force Types of Forces Pressure Buoyant Force Friction Normal Force Pressure Ratio of Force Per Unit Area p = F A P = N/m 2 = 1 pascal (very small) P= lbs/in 2 = psi = pounds per square inch Example: Snow Shoes

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

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

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

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

1 Fluids and Pressure

1 Fluids and Pressure CHAPTER 3 1 Fluids and Pressure SECTION Forces in Fluids BEFORE YOU READ After you read this section, you should be able to answer these questions: What are fluids? What is atmospheric pressure? What is

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 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

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

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

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

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

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

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

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

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 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

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

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

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

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

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

2 Buoyant Force. TAKE A LOOK 2. Identify What produces buoyant force?

2 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 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

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

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

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

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

Key Terms Chapter 7. boiling boiling point change of state concentration condensation deposition evaporation flow rate fluid freezing point

Key Terms Chapter 7. boiling boiling point change of state concentration condensation deposition evaporation flow rate fluid freezing point Foldable Activity Using the instructions on page 267 in your textbook on how to make foldables, write a key term on each front tab, and the definition on the inside (see example that I made up). You will

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

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

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

Fluids. James H Dann, Ph.D. Say Thanks to the Authors Click (No sign in required)

Fluids. James H Dann, Ph.D. Say Thanks to the Authors Click   (No sign in required) Fluids James H Dann, Ph.D. Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required) To access a customizable version of this book, as well as other interactive content, visit

More information

Card 1 Chapter 17. Card 2. Chapter 17

Card 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 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

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

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

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

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

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

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The concept of pressure involves both 1) A) force and area. B) force and volume. C) area

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

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

Chapter 13. liquids. gases. 1) Fluids exert pressure. a) because they're made up of matter and therefore forces are applied to them

Chapter 13. liquids. gases. 1) Fluids exert pressure. a) because they're made up of matter and therefore forces are applied to them \ Chapter 13 Fluids 1) Fluids exert pressure a) because they're made up of matter and therefore forces are applied to them liquids gases b) they are made of matter in constant motion colliding with other

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

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

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

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

Conceptual Physics Fundamentals

Conceptual Physics Fundamentals Conceptual Physics Fundamentals Chapter 7: FLUID MECHANICS This lecture will help you understand: Density Pressure Pressure in a Liquid Buoyancy in a Liquid Pressure in a Gas Atmospheric Pressure Pascal

More information

Buoyancy and Density. Buoyant Force and Fluid Pressure. Key Concept Buoyant force and density affect whether an object will float or sink in a fluid.

Buoyancy and Density. Buoyant Force and Fluid Pressure. Key Concept Buoyant force and density affect whether an object will float or sink in a fluid. 2 Buoyancy and Density Key Concept Buoyant force and density affect whether an object will float or sink in a fluid. What You Will Learn All fluids exert an upward buoyant force on objects in the fluid.

More information

Gases and Pressure SECTION 11.1

Gases 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 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

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

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

. 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

Please pick up your midterms from front of class

Please pick up your midterms from front of class Please pick up your midterms from front of class Average: 26.7/40 ~ 67 % Top grade: 39/40 = 97.5% Test % score distribution: Make sure you go through your test and the solutions carefully to understand

More information

Chapter 13 Fluids. Copyright 2009 Pearson Education, Inc.

Chapter 13 Fluids. Copyright 2009 Pearson Education, Inc. Chapter 13 Fluids 13-7 Buoyancy and Archimedes Principle This is an object submerged in a fluid. There is a net force on the object because the pressures at the top and bottom of it are different. The

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

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

Flying High. HHJS Science Week Background Information. Forces and Flight

Flying High. HHJS Science Week Background Information. Forces and Flight Flying High HHJS Science Week 2013 Background Information Forces and Flight Flight Background Information Flying is defined as controlled movement through the air. Many things can become airborne but this

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

Quiz name: Chapter 13 Test Review - Fluids

Quiz name: Chapter 13 Test Review - Fluids Name: Quiz name: Chapter 13 Test Review - Fluids Date: 1. All fluids are A gases B liquids C gasses or liquids D non-metallic E transparent 2. 1 Pa is A 1 N/m B 1 m/n C 1 kg/(m s) D 1 kg/(m s 2 ) E 1 N/m

More information

10.4 Buoyancy is a force

10.4 Buoyancy is a force Chapter 10.4 Learning Goals Define buoyancy. Explain the relationship between density and buoyancy. Discuss applications of Archimedes principle. 10.4 Buoyancy is a force Buoyancy is a measure of the upward

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

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

20 Gases. Gas molecules are far apart and can move freely between collisions.

20 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 information

Gas molecules are far apart. collisions The Atmosphere

Gas 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 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

Page 1. Balance of Gravity Energy More compressed at sea level than at higher altitudes Moon has no atmosphere

Page 1. Balance of Gravity Energy More compressed at sea level than at higher altitudes Moon has no atmosphere Earth s Atmosphere Gases and Plasmas Balance of Gravity Energy More compressed at sea level than at higher altitudes Moon has no atmosphere Magdeburg Hemispheres Weight of Air mass of air that would occupy

More information

LECTURE 16: Buoyancy. Select LEARNING OBJECTIVES:

LECTURE 16: Buoyancy. Select LEARNING OBJECTIVES: Lectures Page 1 Select LEARNING OBJECTIVES: LECTURE 16: Buoyancy Understand that the buoyant force is a result of a pressure gradient within a fluid. Demonstrate the ability to analyze a scenario involving

More information

CHAPTER 9 Fluids. Units

CHAPTER 9 Fluids. Units CHAPTER 9 Fluids Units Fluids in Motion; Flow Rate and the Equation of Continuity Bernoulli s Equation Applications of Bernoulli s Principle Viscosity Flow in Tubes: Poiseuille s Equation, Blood Flow Surface

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