# L 15 Fluids [4] The Venturi Meter. Bernoulli s principle WIND. Basic principles of fluid motion. Why does a roof blow off in high winds?

Save this PDF as:

Size: px
Start display at page:

Download "L 15 Fluids [4] The Venturi Meter. Bernoulli s principle WIND. Basic principles of fluid motion. Why does a roof blow off in high winds?"

## Transcription

1 Basic principles of fluid motion L 15 Fluids [4] >Fluid flow and Bernoulli s s principle >Airplanes and curveballs >viscosity (real fluids) v 1 Continuity equation: v A = constant A 1 A 2 v 2 Bernoulli s principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases: P + ½ ρv 2 = constant The Venturi Meter Blowing air over the top of the tube lowers the air pressure on that side allowing the fluid to rise Bernoulli s principle fast flow low pressure slow flow high pressure Low pressure Why does a roof blow off in high winds? WIND Low Pressure High pressure Normal Pressure No flow Flow on top 1

2 Wind tunnel visualization of air flow Streamlines and fluid flow The black lines are the paths that the fluid takes as it flows. Wider spacing indicated slow speeds Color indicates pressure violet is high pressure, red is lower pressure. Bernoulli s Equation Fluid flow velocity = u Fluid density = ρ (rho) Fluid pressure = P Then along a streamline: P + ½ ρ u 2 + ρ g h = constant where u is high, P is low where u is low, P is high The jet moves through the air Frames of reference From the perspective of the jet, the air moves relative to the jet Streamlines around a wing Flow over an airplane wing wing 2

3 Control surfaces on a plane How does a plane turn? By extending the slats, the wing area can be increased to generate more lift at low speeds for takeoff and landing Lift Force Level Flight Banked turn Airflow around a baseball that is NOT rotating The ball is moving but from the ball s perspective the air moves relative to the ball The streamlines are bunched at the top and bottom indicating higher flow speed The pressure forces are balanced Curveballs High speed, Low P The ball is rotating clockwise. The layer of air adjacent to the ball is dragged along by the rotation, causing the flow speed to be higher on the top side. The higher pressure on the bottom causes the ball to curve upward. low speed, high P Curveballs & Screwballs Viscosity so far we have considered only ideal liquids liquids that can flow without any resistance real liquids have a property called viscosity which is a tendency for the liquid to resist flowing 3

4 viscosity for example pancake syrup flows more slowly than water we say that pancake syrup is more viscous than water. Ketchup and molasses are also good examples viscosity is sometimes referred to as the thickness of a liquid viscosity is the most important property of motor oil Seeing the effects of viscosity Pancake syrup Substances with higher viscosity take longer to flow down the ramp. viscosity is a measure of the resistance that one layer of liquid experiences when flowing over another layer. some viscosity data water has a viscosity of about 1 unit pancake syrup has a viscosity of 2500 ketchup has a viscosity of 98,000 peanut butter has a viscosity of 250,000 glass is a liquid with a very high viscosity of 1,000,000,000,000,000 it does flow! viscosity depends on temperature, e.g. heating up corn syrup Motor Oil SAE Society of American Engineers the viscosity of oil tends to decrease as it heats up (oil breakdown) what does 10W30 mean? viscosity indexcold engine meets viscosity requirements for winter (low temp) viscosity indexhot engine A higher viscosity index indicates the viscosity changes less with temperature than a lower viscosity index. Measuring viscosity Flow through a pipe ball bearings P 2 P 1 D low viscosity Liquid (e. g. water) high viscosity Liquid (e.g. syrup) π i( P2 P1) id volume flow rate = 128iLiη η (eta) is the fluid s viscosity L 4 big effect! A 10 % reduction in diameter reduces the flow by 34 % If D D/2, the flow is reduced by 94 % 4

5 SURFACE TENSION a surface tension force causes a fluid surface to behave like an elastic sheet A pipe clogged With calcium deposits Molecules at the surface feel a net force insect on water surface Suspended by surface tension measuring surface tension forces soap film W soap films surface tension effects 5

6 Alveoli of the Lungs The oxygen exchange in the lungs takes place across the membranes of small balloon-like structures called alveoli attached to the branches of the bronchial passages. These alveoli inflate and deflate with inhalation and exhalation It takes some effort to breathe in because these tiny balloons must be inflated, but the elastic recoil of the tiny balloons assists us in the process of exhalation. If the elastic recoil of the alveoli is compromised, as in the case of emphysema, then it is difficult to exhale forcibly. 6

### 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

### 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

### PRE-TEST Module 2 The Principles of Flight Units /60 points

PRE-TEST Module 2 The Principles of Flight Units 1-2-3.../60 points 1 Answer the following questions. (20 p.) moving the plane (4) upward / forward. Opposed to that is 1. What are the names of the four

### Applications of Bernoulli s principle. Principle states that areas with faster moving fluids will experience less pressure

Applications of Bernoulli s principle Principle states that areas with faster moving fluids will experience less pressure Artery o When blood flows through narrower regions of arteries, the speed increases

### 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

### AEROSPACE MICRO-LESSON

AIAA Easily digestible Aerospace Principles revealed for K-12 Students and Educators. These lessons will be sent on a bi-weekly basis and allow grade-level focused learning. - AIAA STEM K-12 Committee.

### 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

### 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

### Write important assumptions used in derivation of Bernoulli s equation. Apart from an airplane wing, give an example based on Bernoulli s principle

HW#3 Sum07 #1. Answer in 4 to 5 lines in the space provided for each question: (a) A tank partially filled with water has a balloon well below the free surface and anchored to the bottom by a string. The

### SPH 4C Unit 4 Hydraulics and Pneumatic Systems

SPH 4C Unit 4 Hydraulics and Pneumatic Systems Properties of Fluids and Pressure Learning Goal: I can explain the properties of fluids and identify associated units. Definitions: Fluid: A substance that

### 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

### CASE STUDY FOR USE WITH SECTION B

GCE A level 135/01-B PHYSICS ASSESSMENT UNIT PH5 A.M. THURSDAY, 0 June 013 CASE STUDY FOR USE WITH SECTION B Examination copy To be given out at the start of the examination. The pre-release copy must

### How An Airplane Wing Creates Lift

2004 Transportation Education Academy Activity: How An Airplane Wing Creates Lift Standards being met for technological literacy: 1. Number 8 2. Number 9 3. Number 11 4. Number 18 Description: In this

### Jet Propulsion. Lecture-17. Ujjwal K Saha, Ph. D. Department of Mechanical Engineering Indian Institute of Technology Guwahati

Lecture-17 Prepared under QIP-CD Cell Project Jet Propulsion Ujjwal K Saha, Ph. D. Department of Mechanical Engineering Indian Institute of Technology Guwahati 1 Lift: is used to support the weight of

### 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

### 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

### 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

### Vocabulary: 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

### Bernoulli's Principle

Bernoulli's Principle Bernoulli's Principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases. Introduction The Bernoulli's Principle explains the behavior of

### Principles of Flight. Chapter 4. From the Library at Introduction. Structure of the Atmosphere

From the Library at www.uavgroundschool.com Chapter 4 Principles of Flight Introduction This chapter examines the fundamental physical laws governing the forces acting on an aircraft in flight, and what

### Detailed study 3.4 Topic Test Investigations: Flight

Name: Billanook College Detailed study 3.4 Topic Test Investigations: Flight Ivanhoe Girls Grammar School Questions 1 and 2 relate to the information shown in the diagram in Figure 1. z Question 1 y Figure

### 1. 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

THE PHYSICS OF FLOW ANAESTHESIA TUTORIAL OF THE WEEK 84 9TH APRIL 2008 Paul Clements, SpR in Anaesthetics, Hope Hospital, Salford, UK. Carl Gwinnutt, Consultant Anaesthetist, Hope Hospital, Salford, UK.

### Uncontrolled copy not subject to amendment. Principles of Flight

Uncontrolled copy not subject to amendment Principles of Flight Principles of Flight Learning Outcome 1: Know the principles of lift, weight, thrust and drag and how a balance of forces affects an aeroplane

### 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

### 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

### 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

### Bicycles 2. Bicycles 1. Bicycles 4. Bicycles 3. Bicycles 5. Bicycles 6

Bicycles 1 Bicycles 2 Reading Question 4.1a How would raising the height of a sport utility vehicle affect its turning stability? A. Make it less likely to tip over B. Make it more likely to tip over C.

### Unit Review air aerodynamics and flight

SLEs Properties of Air o has pressure o has mass o composition of air Recipe for air Login to Learn Alberta site Click on Grade 6 Click on science Click on The Thrill of Flight Topic 2 What is Air?, Lesson

### TEACHING SCIENCE BY OCEAN INQUIRY Pressure

TEACHING SCIENCE BY OCEAN INQUIRY Pressure Nine activities are described below. Explanations are provided after the instructions. Goals: The activities below address different aspects of pressure. Activity

### BASIC PHYSICS APPLIED TO ANAESTHESIOLOGY

BASIC PHYSICS APPLIED TO ANAESTHESIOLOGY Dr.R.Selvakumar.M.D.D.A.DNB Professor of Anaesthesiology, K.A.P.Viswanatham Govt medical college, Trichy. The current practice of Anaesthesiology demands knowledge

### LAB 5 Pressure and Fluids

Cabrillo College Physics 10L Full Name LAB 5 Pressure and Fluids Read Hewitt Chapters 11 and 14 What to learn and explore Physicists have found that if they visualize (or model) a gas as a collection of

### Bernoulli s Principle at Work

Diagram of demonstration Denise Winkler and Kim Brown July 25, 2003 Bernoulli s Principle at Work *Airflow should be straight on the edge of the airfoil. pivot rod airflow counter weight support rod airfoil

Parasite Drag by David F. Rogers http://www.nar-associates.com Copyright c 2005 David F. Rogers. All rights reserved. How many of you still have a Grimes rotating beacon on both the top and bottom of the

### 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

### 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,

### Forces that govern a baseball s flight path

Forces that govern a baseball s flight path Andrew W. Nowicki Physics Department, The College of Wooster, Wooster, Ohio 44691 April 21, 1999 The three major forces that affect the baseball while in flight

### Principles of Sailing

Principles of Sailing This is a PowerPoint set of charts presented by Demetri Telionis on March 21, 2015 at the Yacht Club of Hilton Head Island. The aim of this presentation was to help the audience understand

### Fluids 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

### THE CURVE OF THE CRICKET BALL SWING AND REVERSE SWING

Parabola Volume 32, Issue 2 (1996) THE CURVE OF THE CRICKET BALL SWING AND REVERSE SWING Frank Reid 1 It is a well known fact in cricket that the new ball when bowled by a fast bowler will often swing

### Respiratory Pulmonary Ventilation

Respiratory Pulmonary Ventilation Pulmonary Ventilation Pulmonary ventilation is the act of breathing and the first step in the respiratory process. Pulmonary ventilation brings in air with a new supply

### 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

### Relevent SOL s. Materials and Resources:

Title: Bernoulli s Principle Lab Supplemented with Digital Video Designed by Burke Green and Megan Ward Purpose/Rationale: Bernoulli s Principle is useful in predicting several physical phenomena. It makes

### 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

### SCIENCE and TECHNOLOGY CYCLE 3 MCCAIG ELEMENTARY

NAME SCIENCE and TECHNOLOGY CYCLE 3 MCCAIG ELEMENTARY Air: - colourless, odourless and tasteless, Air and Flight--- Properties of Air - a gas made mainly of nitrogen (78%), oxygen (21%) and small amounts

### Fast or Slow? BROWARD COUNTY ELEMENTARY SCIENCE BENCHMARK PLAN. SC.C The student understands that different things move at different speeds.

activity 40 Fast or Slow? BROWARD COUNTY ELEMENTARY SCIENCE BENCHMARK PLAN Grade K Quarter 4 Activity 40 SC.C.1.1.1 The student understands that different things move at different speeds. SC.C.1.1.2 The

### 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

### Lesson Plan: Bernoulli s Lift

Lesson Plan: Bernoulli s Lift Grade Level: 5-6 Subject Area: Time Required: Science Preparation: 30 minutes Activity: 3 40-minute classes National Standards Correlation: Science (grades 5-8) Physical Science

### 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,

### Physics 152: Homework Problems on Fluids

Physics 152: Homework Problems on Fluids 6/1/07 1. Atmospheric pressure varies from day to day, but 1 atm is defined as 1.01 x 10 5 Pa. Calculate how far upwards such a pressure would force a column of

### Cadette. The Great Paper Clip Airlift. Breathe. STEM Kits

Sponsored By Cadette These activities are from the Leader Guide Book, How to Guide Cadettes Through Breathe. Additional activities were developed exclusively by Girl Scouts - Western Oklahoma to correlate

### (A) The partial pressure in the lungs is higher than in the blood, and oxygen diffuses out of the lungs passively.

DAT Biology - Problem Drill 12: The Respiratory System Question No. 1 of 10 1. Which statement about the partial pressure of oxygen inside the lungs is correct? Question #01 (A) The partial pressure in

### Mini-Labs. 7. Movie Fog 8. Jet Power 9. Sauce Pan 10. Magnetic Bubbles 11. Aquarium Magic 12. Hockey Puck 13. Carbon dioxide balloons

Mini-Labs (13) Mini-Labs 1. Magic Raisins 2. Mysterious Balloons 3. Candle Power 4. Super-cooled Liquid 5. Singing Tongs 6. Film Canister 7. Movie Fog 8. Jet Power 9. Sauce Pan 10. Magnetic Bubbles 11.

### Journal of Aeronautics & Aerospace

Journal of Aeronautics & Aerospace Engineering Journal of Aeronautics & Aerospace Engineering Landell-Mills, J Aeronaut Aerospace Eng 2017, 6:2 DOI: 10.4172/2168-9792.1000189 Research Article Open Access

### Lesson 6 Aerodynamics and flying

36 Lesson 6 Aerodynamics and flying Aerodynamics and flying 37 Suitable for: 11 14 years Curriculum and learning links: Forces, motion, Bernoulli s principle Learning objectives: State that aerodynamics

### Respiratory Physiology Gaseous Exchange

Respiratory Physiology Gaseous Exchange Session Objectives. What you will cover Basic anatomy of the lung including airways Breathing movements Lung volumes and capacities Compliance and Resistance in

### Forces in Fluids. Pressure A force distributed over a given area. Equation for Pressure: Pressure = Force / Area. Units for Pressure: Pascal (Pa)

Pressure A force distributed over a given area Equation for Pressure: Pressure = Force / Area Force = Newton s Area = m 2 Units for Pressure: Pascal (Pa) Forces in Fluids Forces in Fluids A woman s high

### 8.1 Properties of Gases. Goal: Describe the Kinetic Molecular Theory of Gases and the units of measurement used for gases.

Gases Chapter 8 Chapter 8 8.1 - Properties of Gases 8.2 Pressure and Volume (Boyle s Law) 8.3 Temperature and Volume (Charles Law) 8.4 Temperature and Pressure (Guy-Lussac s Law) 8.5 The Combined Gas Low

### Today: 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

### Atmospheric 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

### Measuring Lung Capacity

Measuring Lung Capacity 1 Name Measuring Lung Capacity Background Information: We need a constant supply of oxygen in order to stay alive. We use oxygen to break down food to release energy and produce

### A103 AERODYNAMIC PRINCIPLES

A103 AERODYNAMIC PRINCIPLES References: FAA-H-8083-25A, Pilot s Handbook of Aeronautical Knowledge, Chapter 3 (pgs 4-10) and Chapter 4 (pgs 1-39) OBJECTIVE: Students will understand the fundamental aerodynamic

### Wingin It. Students learn about the Bernoulli effect by building an airfoil (airplane wing) and making it fly.

Wingin It Students learn about the Bernoulli effect by building an airfoil (airplane wing) and making it fly. Grade Levels 5 8 Science Topics Aerodynamics of lift Bernoulli effect Force Velocity Pressure

### 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

### Front Cover Picture Mark Rasmussen - Fotolia.com

Flight Maneuvers And Stick and Rudder Skills A complete learn to fly handbook by one of aviation s most knowledgeable and experienced flight instructors Front Cover Picture Mark Rasmussen - Fotolia.com

### Introduction. Respiration. Chapter 10. Objectives. Objectives. The Respiratory System

Introduction Respiration Chapter 10 The Respiratory System Provides a means of gas exchange between the environment and the body Plays a role in the regulation of acidbase balance during exercise Objectives

### Surface Tension- Worksheet

Surface Tension- Worksheet A-Surface tension phenomenon 1. After watching the video, explain how can insects walk on the surface of the water? 2. Using the glass beaker, water and paper clip in front of

### Animal Systems: The Respiratory System

Animal Systems: The Respiratory System Tissues, Organs, and Systems of Living Things Cells, Cell Division, and Animal Systems and Plant Systems Cell Specialization Human Systems The Digestive The Circulatory

### VISUAL PHYSICS School of Physics University of Sydney Australia. Why can a steel needle float but a larger piece of steel sink?

VISUAL PYSIS School of Physics University of Sydney Australia SURFAE TENSION Why can a steel needle float but a larger piece of steel sink?? Ducks have drowned in farmyard ponds into which washing water

### Fluids: a problem. g (L 2 d) each of the two different fluids. To find the total buoyant force, g (L 2 (L-d)) imagine that the wood block is

Fluids, elasticity, matter Newtonian mechanics of deformable media Fluids: a roblem A beaker contains a thick layer of oil (shown in green) of density ρ 2 floating on water (shown in blue), which has density

### SAFETY WARNING. WARNING.

EXPERIMENT MANUAL 1ST EDITION 2014 2014 THAMES & KOSMOS, LLC, PROVIDENCE, RI, USA THAMES & KOSMOS IS A REGISTERED TRADEMARK OF THAMES & KOSMOS, LLC. PROTECTED BY LAW. ALL RIGHTS RESERVED. WE RESERVE THE

### Unit 9 Packet: Gas Laws Introduction to Gas Laws Notes:

Name: Unit 9 Packet: Gas Laws Introduction to Gas Laws Notes: Block: In chemistry, the relationships between gas physical properties are described as gas laws. Some of these properties are pressure, volume,

### The Respiratory System

Respiration and Excretion Name Date Class The Respiratory System This section describes the parts of the respiratory system and how they work to help you breathe and speak. Use Target Reading Skills As

### and its weight (in newtons) when located on a planet with an acceleration of gravity equal to 4.0 ft/s 2.

1.26. A certain object weighs 300 N at the earth's surface. Determine the mass of the object (in kilograms) and its weight (in newtons) when located on a planet with an acceleration of gravity equal to

### Chapter 6. You lift a 10 N physics book up in the air a distance of 1 meter at a constant velocity of 0.5 m/s. The work done by gravity is

I lift a barbell with a mass of 50 kg up a distance of 0.70 m. Then I let the barbell come back down to where I started. How much net work did I do on the barbell? A) - 340 J B) 0 J C) + 35 J D) + 340

### A Liter a Lung Measuring Lung Capacity

A Liter a Lung Measuring Lung Capacity OBJECTIVE In this investigation, students will compare the actual and expected vital capacities of their classmates. LEVEL Middle Grades Life Science CONNECTIONS

### Daniel and the Old Lion Hunter

Daniel and the Old Lion Hunter Theme When the speed of a moving fluid increases, pressure in the fluid decreases, and vice versa. Goal Daniel Bernoulli Swiss mathematician and scientist (1700 1782) Students

### Activity Parts of an Aircraft

Activity 4.2.7 Parts of an Aircraft Introduction The science of aeronautics really began to evolve in the late 18th and early 19th centuries. Philosophers and early scientists began to look closely at

### Straight and Level. Basic Concepts. Figure 1

Basic Concepts Straight and Level This lesson should start with you asking the student what they did in the last lesson, what do they remember, and determining if they have remembered correctly. We must

### Job Sheet 1 Blade Aerodynamics

Job Sheet 1 Blade Aerodynamics The rotor is the most important part of a wind turbine. It is through the rotor that the energy of the wind is converted into mechanical energy, which turns the main shaft

### Boomerang Tutorial Sunday, May 30,

Boomerang Tutorial Sunday, May 30, 2010 1 OUTLINE Slide No. What is boomerang? 3 History of boomerang. 4 Features of boomerang. 5 Aerodynamics of boomerang. 8 Physics of boomerang. 12 Material used. 20

### P 2 KKK Bernoulli s Law. Article Code: Area: Fluid Mechanics Keywords: Background Knowledge:

Article Code: Area: Fluid Mechanics Keywords: Background Knowledge: Bernoulli s Law When a fluid flows in a pipe, the pressure, P, and the velocity, v, of the fluid in two points, 1 and, of the pipe are

### WHAT IS GLIDER? A light engineless aircraft designed to glide after being towed aloft or launched from a catapult.

GLIDER BASICS WHAT IS GLIDER? A light engineless aircraft designed to glide after being towed aloft or launched from a catapult. 2 PARTS OF GLIDER A glider can be divided into three main parts: a)fuselage

### Higher Projectile Motion Questions

Higher Projectile Motion Questions 1. a) Name the two components of motion in projectiles. b) What is the acceleration on Earth for each of these two components. 2. A pencil case is dropped vertically

### Homework Exercise to prepare for Class #2.

Homework Exercise to prepare for Class #2. Answer these on notebook paper then correct or improve your answers (using another color) by referring to the answer sheet. 1. Identify the major components depicted

### V mca (and the conditions that affect it)

V mca (and the conditions that affect it) V mca, the minimum airspeed at which an airborne multiengine airplane is controllable with an inoperative engine under a standard set of conditions, is arguably

### DRINKING WATER - LAB EXPERIMENTS LAB EXPERIMENTS. Nanofiltration

DRINKING WATER - LAB EXPERIMENTS LAB EXPERIMENTS Nanofiltration nanofiltration lab experiments Framework This module explains the lab experiment on nanofiltration. Contents This module has the following

### Aero Club. Introduction to Flight

Aero Club Presents Introduction to RC Modeling Module 1 Introduction to Flight Centre For Innovation IIT Madras Page2 Table of Contents Introduction:... 3 How planes fly How is lift generated?... 3 Forces

### Why does a golf ball have dimples?

Página 1 de 5 Why does a golf ball have dimples? page 1 A golf ball can be driven great distances down the fairway. How is this possible? Is the drive only dependent on the strength of the golfer or are

### . 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

### 1. GENERAL AERODYNAMICS

Chapter 1. GENERAL AERODYNAMICS Unless otherwise indicated, this handbook is based on a helicopter that has the following characteristics: 1 - An unsupercharged (normally aspirated) reciprocating engine.

### Experiment B-3 Respiration

1 Experiment B-3 Respiration Objectives To study the diffusion process of oxygen and carbon dioxide between the alveoli and pulmonary capillaries. To determine the percentage of oxygen in exhaled air while

### THEORY OF WINGS AND WIND TUNNEL TESTING OF A NACA 2415 AIRFOIL. By Mehrdad Ghods

THEORY OF WINGS AND WIND TUNNEL TESTING OF A NACA 2415 AIRFOIL By Mehrdad Ghods Technical Communication for Engineers The University of British Columbia July 23, 2001 ABSTRACT Theory of Wings and Wind

### Aviation Merit Badge Knowledge Check

Aviation Merit Badge Knowledge Check Name: Troop: Location: Test Score: Total: Each question is worth 2.5 points. 70% is passing Dan Beard Council Aviation Knowledge Check 1 Question 1: The upward acting

### NOTES: CH 42, part 2 - Gas Exchange in Animals

NOTES: CH 42, part 2 - Gas Exchange in Animals Functions of the Respiratory System: 1) Air distribution / gaseous exchange; 2) Filter, warm & humidify air we breathe; 3) Influence speech; 4) Help maintain

### The Science of Golf. Test Lab Toolkit The Ball: Aerodynamics. Grades 6-8

The Science of Golf Test Lab Toolkit The Ball: Grades 6-8 Science Technology Engineering Mathematics Table of Contents Welcome to the Test Lab 02 Investigate: Bernoulli s Principle 03 Investigate: Wind

### VACUUM TESTING PRECAST CONCRETE MANHOLES

1 OF 5 testing is a quick, safe and practical way to validate manhole system integrity. Manhole sections can be tested at the precast concrete plant prior to delivery or on site prior to backfilling. Here