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
|
|
- Shawn West
- 6 years ago
- Views:
Transcription
1
2 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 states the substance is fluid (it flows). Truth: in order for the molecules of any substance to stop moving completely, the substance would have to be frozen to absolute zero, a temperature unattainable in nature.
3 The Four States of Matter Solid Liquid Gas Plasma
4 Particles of solids are tightly packed, vibrating about a fixed position. Solids have a definite shape and a definite volume. Sometimes the arrangement of particles is regular and geometric and crystals are formed and sometimes the material is amorphous.
5 Which one is more dense? Which ones in each set below have more population density and why? Set A Set B The one on the right has more density. MORE people, same space. They both have the same density. MORE people in the second one but MORE space as well
6 Which one is more dense Item A or Item B - and why? Ans. Item B is more dense. It occupies LESS space but has the SAME mass as Item A. That s why the scale is balanced. Item A Item B
7 Which Which one one is is more more dense dense and and why? why? Ans. Here we can t tell. Item A has MORE mass, but also occupies MORE space. Item B Item A
8 What is density? The density of a substance is the mass per unit volume it has, in other words, how compact the substance is. The formula for density is: density m ass units _gm_ cm 3 volum e
9 Elasticity Some objects stretch and return to their original shape. These objects are elastic. Objects that don t return to their original shape are inelastic. The amount of stretch (x) of an elastic object is directly proportional to the force (F) that stretches it. This is called Hooke s Law: 2 cm 10 kg 20 kg 4 cm 8 cm F x Elastic Inelastic 40 kg
10 Elasticity Example A certain spring stretches 45 cm when a weight of 100 N is suspended from it. How much will it stretch if a force of 20 N is suspended from it? 100 N 45 cm 20 N? cm F x F1 x 1 100N 45 cm F x N x 2 100x 2 20Nx 45cm 100x x 2 9 cm
11 Scaling The SURFACE AREA and VOLUME of a cube (2 units on a side) are shown: 2 units long x 2 units wide x 6 sides S. Area: 24 un 2 2 units long 2 units wide x 2 units deep Volume: 8 un 3 Suppose we double the linear dimensions (length, width, and height). What happens to the SURFACE AREA and the VOLUME of our cube? 4 units long x 4 units wide x 6 sides S. Area: 96 un 2 4 units long 4 units wide x 4 units deep Volume: 64 un 3 DOUBLING (x2) the linear dimensions results in QUADRUPLING (x4) the surface area and OCTUPLING (x8) the volume
12 Densities of some common materials Density Density Material (in gm/cm 3 ) Material (in gm/cm 3 ) Osmium 22.6 Steel 7.8 Gold 19.3 Ice 0.92 Lead 11.3 Water at 4 C cm Find the mass of the following objects: 2.5 cm 3 cm Gold 5 cm Ice Lead Volume = l x w x h Volume = r 2 h Volume = 4/3 r 3
13 Liquids have an indefinite shape and a definite volume. Particles of liquids are tightly packed, but are far enough apart to slide over one another.
14 Liquid Layers Which layer has the highest density? Which layer has the lowest density? Which is fresh water, oil, salt water, alcohol?
15 Where is the pressure greater? 5 m 10 m EVIDENCE: If one were to make a hole in the side of each container, the water would squirt out much further out of the bottom one
16 The volume of the water displaced equals the volume of the irregularly shaped object. How do you find the volume of an irregularly (non-geometrically) shaped object?
17 Where does bouyancy come from? In other words, why do objects feel lighter underwater? There is a pressure difference between the top and the bottom of the object which are at different depths. Bouyant Force
18 An object will float when F w the Bouyant Force is greater than the weight of the object
19 An object will float when F w the Bouyant Force is greater than the weight of the object
20 An object will float when F w the Bouyant Force is greater than the weight of the object
21 0 N 5 3 Archimedes Principle An immersed object is buoyed up by a force equal to the weight of the fluid it displaces Apparent weight of rock Weight of water displaced Total Weight of Object in air 3 N + 2 N = 5 N N
22 Pascal s Principle Changes in pressure at any point in an enclosed fluid at rest are transmitted undiminished to all points in the fluid and act in all directions (because fluids are uncompressible)
23 Pascal s Principle If the pistons have different areas, then the pressure (force per unit area) will be the same. This allows heavy loads to be lifted (LARGE FORCE). However, they will be lifted over a small distance. d d
24 Principle of Flotation A floating object displaces a weight of fluid equal to its own weight. 0 N 0 N 5 N 5 N The trick to get something more dense than water to float is to shape it so that it displaces as much water as its own weight.
25 REMEMBER: the bouyant force is determined by the volume of water displaced, not by the weight of the object. That s why the same one ton piece of iron (see below) sinks when shaped like a block but floats when molded into a bowl shape F B F B F w F w
26 A 1-kg rock weighs 9.8 N. The water in the container below also weighs 9.8 N. When submerged underwater, the rock s apparent weight is 7.8 N. A. What is the bouyant force on the rock? B. If the container of water on the 7.8 N scale weighs 9.8 N, what is the scale reading when the rock is suspended beneath the surface of the water? C. What is the scale 0 N 0 N 0 N reading when the rock is resting on? N? N the bottom of the 9.8 N container? 9.8 N
27 Gases have an indefinite shape and an indefinite volume. Particles of gases are very far apart and move freely.
28 Both liquids and gases are fluids, and basically obey the same principles, but there are some differences... Ocean of Air Ocean of Water pressure with incr. depth. density at bottom. Temperature with incr. depth. pressure with incr. depth. Same density throughout. Temperature with incr. depth.
29 At sea level, one cubic meter of air at 20 C, has a mass of about 1.2 kg. 1 m 3 of air 1.2 kg
30 The weight of air upon one-square meter of ground at sea level is about 100,000 N (10,200 kg). So atmospheric pressure is about: 100,000 Newtons per square meter or 100,000 N/m 2 or 100,000 Pascals or 100 kpa
31 In order to keep the cabin pressurized at all altitudes, a commercial airliner like a 747 carries up to 1000 kg of additional air in tanks.
32 Air pressure pushing on well water Vacuum created here WATER PUMP. When you push down the crank, it sucks the air out of the chamber with a piston allowing air pressure to push down on the water in a well through one tube and making it rise to the surface through the other tube. Water rising to the surface
33 The varying pressure of the air on a dish of mercury can produce a measuring device called a barometer. 76 cm Normal Atmospheric Pressure Lower Atmospheric Pressure
34 Why is mercury, a toxic substance, used and not water, for example, in a barometer m Because of its high density, mercury only rises 0.76 m due to atmospheric pressure. A column of water (lower density) in a barometer would be 10.3 m high
35 P 1 V 1 = P 2 V 2 Boyle s Law P 1 and V 1 are the original pressure and volume and P 2 and V 2 are the final pressure and volume The product of the pressure and volume for a given mass of gas stays the same as long as the temperature doesn t change.
36 Bouyancy in Air Any object that has a mass less than the mass of an equal volume of surrounding air will rise. In other words, objects that are less dense than the air around it will rise.
37 Bernoulli s Principle When the speed of a fluid increases, the pressure drops. We are talking about the pressure IN the fluid not the pressure on things the fluid ACTS on.
38 Bernoulli s Principle Bernoulli s Principle explains why the wings of an airplane have LIFT and the plane can fly. The air travels faster on the upper side of the wing meaning there is less pressure on the upper side than the lower side so the wing rises. LIFT
39 1. This room (H9) has dimensions of 6 meters (wide) by 8 meters (long). A.What is the weight of the air on the floor? B. What is the air pressure on the floor? 2. Squeeze a balloon to a third of its volume, by how much will the pressure inside the balloon increase? Double the pressure on the balloon, by how much will its volume decrease? 3. A scuba diver 10.3 m below the surface of the water breathes compressed air into her lungs. If she holds her breath while retuning to the surface, by how much will the volume of her lung s increase?
40 PHASE CHANGES Description of Phase Change Solid to liquid Liquid to solid Term for Phase Change Melting Freezing Heat Movement During Phase Change Heat goes into the solid as it melts. Heat leaves the liquid as it freezes.
41 PHASE CHANGES Description of Phase Change Liquid to gas Term for Phase Change Vaporization, which includes boiling and evaporation Gas to liquid Condensation Solid to gas Sublimation Heat Movement During Phase Change Heat goes into the liquid as it vaporizes. Heat leaves the gas as it condenses. Heat goes into the solid as it sublimates.
42 B. Phase Properties Phase Solid Liquid Gas Particle Properties Proximity Energy Motion Volume Shape close little vibrational definite definite close moderate rotational definite indefinite far apart a lot translational indefinite indefinite
43 B u t w h a t h a p p e n s if y o u r a is e th e te m p e r a tu r e to s u p e r -h ig h le v e ls b e tw e e n C a n d 1,000,000,000 C? W ill e v e r y th in g ju s t b e a g a s?
44 STATES OF MATTER PLASMA A plasma is an ionized gas. A plasma is a very good conductor of electricity and is affected by magnetic fields. Plasmas, like gases have an indefinite shape and an indefinite volume. Plasma is the common state of matter
45 STATES OF MATTER SOLID LIQUID GAS PLASMA Tightly packed, in a regular pattern Vibrate, but do not move from place to place Close together with no regular arrangement. Vibrate, move about, and slide past each other Well separated with no regular arrangement. Vibrate and move freely at high speeds Has no definite volume or shape and is composed of electrical charged particles
46 S o m e p la c e s w h e re p la s m a s a re fo u n d 1. Flames
47 2. Lightning
48 3. Aurora (Northern Lights)
49 T h e S u n is a n e x a m p le o f a s ta r in its p la s m a s ta te
50
51 COLD PLASMA
52 COLD PLASMA PEN
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 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 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 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 informationDensity. 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 informationName. 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 informationClicker 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 informationL 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 informationPHYS: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 informationForce 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 informationAP 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 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 information1/4/18. 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 informationChapter 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 informationUnit 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 informationConceptual 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 informationAtmospheric Pressure. Conceptual Physics 11 th Edition. Atmospheric Pressure. Atmospheric Pressure. The Atmosphere
Atmospheric Pressure Conceptual Physics 11 th Edition Chapter 14: GASES Atmospheric pressure Caused by weight of air Varies from one locality to another Not uniform Measurements are used to predict weather
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 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 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 informationKey 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 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 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 informationFrom 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 informationConceptual 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 informationScience 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 informationLecture 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 informationPlease pick up your midterm if you haven t already. Today: Finish Chapter 13 (Liquids) from last time. Start Chapter 14 (Gases and Plasmas)
Please pick up your midterm if you haven t already Today: Finish Chapter 13 (Liquids) from last time Start Chapter 14 (Gases and Plasmas) Gases and plasmas: Preliminaries Will now apply concepts of fluid
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 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 informationChapter 12. Properties of Gases
Properties of Gases Each state of matter has its own properties. Gases have unique properties because the distance between the particles of a gas is much greater than the distance between the particles
More informationChapter 3. Solids, Liquids, and Gases
Chapter 3 Solids, Liquids, and Gases Section 1: States of Matter Learning Objectives: Describe the characteristics of a solid Describe the characteristics of a liquid Describe the characteristics of a
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 information1 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 informationProperties 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 informationLecture 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 information17.2 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 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 informationDensity 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 informationVacuum 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. 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 informationChapter 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 informationHW #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 informationChapter 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 informationL-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 informationChapter 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 information1. 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 informationFluids. 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 informationPhys101 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 informationMotion, 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 informationChapter 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 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 informationLecture 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 informationPHYSICS - 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 informationSection 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 informationChapter 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 informationDensity, 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 informationReview: 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 informationChapter 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 informationKinetic Molecular Theory
Kinetic Molecular Theory Name Period Unit 7 HW 1 Worksheet (Goals 1 & 2) 1. Describe how gases, liquids, and solids compare using the following table. Volume (definite or indefinite) Molecular Motion (high,
More informationDensity, 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 informationVocabulary: Solid has a definite shape and volume.
Chapter 2.1 States of Matter Vocabulary: Solid Crystalline solid Amorphous solid Liquid Fluid Surface tension Viscosity Gas Pressure LCD in a TV or cell phone stands for Liquid Crystal Display. They have
More informationGrade 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 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 information4. Using the kinetic molecular theory, explain why a gas can be easily compressed, while a liquid and a solid cannot?
Name Period HW 1 Worksheet (Goals 1-4) - Kinetic Molecular Theory 1. Describe how gases, liquids, and solids compare using the following table. Solids Liquids Gases Volume (definite or indefinite) Molecular
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 informationFluids 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 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 informationNotes 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 informationAir exerts a on the walls of its container. Air Pressure is due to the of the molecules in the air as they
Lesson 1,2: What is Air Pressure? Air exerts a on the walls of its container. This is often called Pressure. Air Pressure is due to the of the molecules in the air as they collide with the walls. Air has.
More informationChapter 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 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 informationMULTIPLE 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 informationCHAPTER 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 informationPractice Packet Unit 8: Gases
Name: Regents Chemistry: Practice Packet Unit 8: Gases www.chempride.weebly.com Vocabulary: Absolute Zero: Avogadro s Hypothesis: (Normal) Boiling Point: Direct Relationship: Evaporating: Gas: Ideal Gas:
More informationConcept 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 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 informationFluids Chapter 13 & 14 Liquids & Gases
Fluids Chapter 13 & 14 Liquids & Gases Liquids like solids are difficult to compress. Both liquids and gases can flow, so both are called fluids. The pressure you feel is due to the weight of water (or
More information8. Now plot on the following grid the values of T (K) and V from the table above, and connect the points.
Charles s Law According to Charles s law, the volume of a fixed mass of gas varies directly with its Kelvin temperature if its pressure is constant. The following table contains Celsius temperature and
More informationDec 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 informationGases. Edward Wen, PhD
Gases Edward Wen, PhD Properties of Gases expand to completely fill their container take the shape of their container low density much less than solid or liquid state compressible when pressure is changed.
More informationUnit 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 informationUnit 9: Gas Laws REGENTS CHEMISTRY
Name: Unit 9: Gas Laws REGENTS CHEMISTRY 1 Name: Unit 9: Gas Laws The concept of an ideal gas is a model to explain the behavior of gases. A real gas is most like an ideal gas when the real gas is at low
More informationStatic 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 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 informationCh. 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 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 informationExam Review Mass, Weight, Density, Buoyancy, States of Matter
Exam Review Mass, Weight, Density, Buoyancy, States of Matter Volume An object s volume is the amount of space it takes up. The volume of a cup of water can change if you freeze it in to a solid or boil
More informationLiquids 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 informationName 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 informationPRESSURE. 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 informationFluid 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 informationChemistry Chapter 12. Characteristics of Gases. Characteristics of Gases 1/31/2012. Gases and Liquids
Importance of Gases Chemistry Chapter 12 Gases and Liquids Airbags fill with N 2 gas in an accident. Gas is generated by the decomposition of sodium azide, NaN 3. 2 NaN 3 ---> 2 Na + 3 N 2 THREE STATES
More informationWhat happens to the mass and what happens to the weight of the liquid in the cup? decreases stays the same decreases stays the same
1 cup contains hot liquid. Some of the liquid evaporates. What happens to the mass and what happens to the weight of the liquid in the cup? mass stays the same stays the same weight stays the same stays
More informationKinetic Model of Matter
For more awesome GSE and level resources, visit us at www.savemyexams.co.uk/ Kinetic Model of Matter Question Paper Level Subject Exam oard Unit Topic ooklet Time llowed: O Level Physics ambridge International
More informationOld-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 informationYou should be able to: Describe Equipment Barometer Manometer. 5.1 Pressure Read and outline 5.1 Define Barometer
A P CHEMISTRY - Unit 5: Gases Unit 5: Gases Gases are distinguished from other forms of matter, not only by their power of indefinite expansion so as to fill any vessel, however large, and by the great
More informationAdditional 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 informationKinetic-Molecular Theory
GASES Chapter Eleven Kinetic-Molecular Theory! Recall that our only previous description of gases stated that gases completely fill and take the shape of their containers.! The Kinetic-Molecular Theory
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 information