20.8 A PPLICATIONS OF B ERNOULLI ’ S P RINCIPLE. A PPLICATIONS OF B ERNOULLI ’ S P RINCIPLE Bernoulli’s principle partly accounts for the flight of birds.

Slides:

Advertisements

Similar presentations

Exploring the Four Forces of Flight

Advertisements

Bernoulli’s Principle

How air and water move things

Chapter 10 – Fluids and Pressure. When you drink liquid through a straw, which of the items listed below is primarily responsible for this to work? 60.

Pascal’s Principle Goal: Students will be able to explain Pascal’s principle.

Chapter 7 Section 1 Fluids and Pressure

Ancient Dreamers Leonardo da Vinci Italian artist and scientist ( ) gathered data on the flight of birds and developed concepts of the propeller,

Transmitting Pressure in a Fluid

The fast-moving stream of air from the blow dryer creates a column of low-pressure air. The table tennis ball is suspended in an area of low pressure.

Fluid Dynamics Introduction Section 0 Lecture 1 Slide 1 Lecture 21 Slide 1 INTRODUCTION TO Modern Physics PHYX 2710 Fall 2004 Physics of Technology—PHYS.

Fundamentals of Flight

Other Effects of Fluids (Pascal’s Principal and Bernoulli's Principal)

The Role of Lift in Overcoming Gravity. Background Bernoulli’s Principle (discussed in the previous lesson) also applies to flight. The difference in.

Pascal’s and Bernoulli’s Principle

Principles of Flight Spitfire. Chapter 1 – Weight and Lift How is an aircraft, which is much heavier than the air it flies in, supported by the air? C130.

What keeps the ball above the stream of air?. Fluids in Motion Viscosity is the resistance of a gas or liquid to flow. Bernoulli’s principle states that.

Any substance that can change shape or flow easily.

M ARCH 14, 2014 Homework: Study for test on Tuesday- Complete study guide- Review game Monday Do Now : - Write down homework, Open notebook to pg. 88,

Lecture Leading Cadet Training Principles of Flight 1 Introduction.

Forces of Flight.

Fluids and Motion Pressure – Refers to a force pushing on a surface. Area is the measure of a surface. Calculating Pressure – Pressure (Pa) = Force (N)

KEY KNOWLEDGEKEY SKILLS Projectile motion of the human body and objects through the air and through water  Key principles associated with projectile motionof.

Forces in Fluids Bernoulli’s Principle Terms Bernoulli’s Principle~ as the speed of a moving fluid increases, its pressure decreases Lift~ an upward.

Human movement through air and water

Forces in Fluids Chapter 3.

PHYS 115 EXAM Friday, April 2 10:30-11:20pm Brace 211 first-come first-served with spill-over being seated in Brace 201 Brace 113N Ferg 112 You know the.

Principles of Flight Chapter 1 – Lift and Weight.

The Sky’s the Limit. Terms Acceleration Aerodynamics Air Pressure Balanced forces Drag Force Gravity Lift Mass Propulsion Thrust Unbalanced forces.

Chapter 4: Forces and Fluids

Choose a category. You will be given the answer. You must give the correct question. Click to begin.

Chapter 11 Section 4 Bernoulli’s Principle. Pressure and Moving Fluids Fluids move from an area of high pressure to an area of low pressure example drinking.

Bernouli’s Principle.

The Science of Flight Mr. Zushma Technology & Design for Science and Engineering.

Ch & 11.4 Guided Reading Check

Forces in Fluids Section 6-1 Pressure. Forces in Fluids What is pressure?  A force pushing on a surface How do force and pressure differ?  Your downward.

Chapter 7 Forces in Fluids.

What is Bernoulli’s principle?

Chapter 3.3 M BERNOULLI’S PRINCIPLE. Fluid Pressure Decreases as Speed Increases Bernoulli’s principle says that as the speed of a moving fluid increases,

Bernoulli’s Principle

Forces and Pressure in Fluids

Pressure – The result of force distributed over an area – Pressure = Force(in Newton's – N)/area (m 2 ) Pascal (Pa) – SI unit for Pressure – Named after.

Chapter 5.2 Notes Bernoulli’s Principle. Bernoulli’s Principle says that as the velocity of a fluid (such as air) increases, the pressure in the fluid.

Laminar and Turbulent Flow: More Practice

Chapter 7 - Holt Forces in Fluids. Section 1 pages A fluid is any material that can flows and that takes the shape of its container. Fluids include.

Lesson 2 Chapter 16. Properties of Fluids A fluid is a gas or a liquid A fluid is a gas or a liquid –despite their weight ships are able to float. –greater.

Chapter 7 - Holt Forces in Fluids. Section 1 pages A fluid is any material that can _____ and that takes the shape of its container. Fluids include.

Buoyancy and Density Fluid  matter that flows  liquids and gases Buoyancy  The ability of a fluid to exert an upward force on an object immersed in.

CHECK POINT – FLUID PHYSICS DR. BROWNE. 1.Earth’s ________________ is made of a mix of gases called ______________. 1.The molecules of air are in constant.

Bernoulli’s Principle

Pressure in Fluid A fluid exerts pressure in all directions. At any point in a fluid at rest, the pressure is the same in all direction. The force due.

Section 3-3. Fluid Speed and Pressure Bernoulli’s Principle: As the speed of a fluid increases, the fluid’s pressure decreases. Bernoulli’s Principle:

Fluids and Motion 3.3. Daniel Bernoulli Discovered as the speed of a moving fluid increases, the pressure decreases. Called the Bernoulli Principle.

Conceptual Physics 11th Edition

The Principles of Flight

Rebecca Sanders-Eachus

Topic: Bernoulli’s Principle

Good Day! 9/13/2018 Starter:Why do roofs lift off of houses in a tornado? Today we will be Look at the grade sheet First finish the lab from Friday (we.

Section 4 – pg 437 Bernoulli’s Principle

Warm – Up Chapter How do particle change from a solid to a liquid? 2. What is the difference between evaporation and boiling? 3. What is sublimation?

Bernoulli's Principle.

Fluids and Motion.

Chapter 12 Section 3.

13.2 Forces and Pressure in Fluids

Bernoulli’s Principle

Bernoulli's Principle.

Bernoulli’s Principle

Forces of Flight.

Chapter 11 Section 4: Bernoulli’s Principle

Presentation transcript:

20.8 A PPLICATIONS OF B ERNOULLI ’ S P RINCIPLE

A PPLICATIONS OF B ERNOULLI ’ S P RINCIPLE Bernoulli’s principle partly accounts for the flight of birds and aircraft. Try blowing air across the top of a sheet of paper. The paper rises because air passes faster over the top of the sheet than below it. The paper rises when you blow air across the top of it.

L IFT Due to the shape and orientation of airplane wings, air passes somewhat faster over the top surface of the wing than beneath the lower surface. Pressure above the wing is less than pressure below the wing. Lift is the upward force created by the difference between the air pressure above and below the wing. When lift equals weight, horizontal flight is possible.

P RESSURE AND F ORCE Even a small pressure difference multiplied by a large wing area can produce a considerable force. The lift is greater for higher speeds and larger wing areas. Low-speed gliders have very large wings relative to the size of the fuselage. The wings of faster- moving aircraft are relatively small.

A IR P RESSURE Air pressure above the wing is less than the pressure below the wing.

P RESSURE AND L IFT Atmospheric pressure decreases in a strong wind. Air pressure above a roof is less than air pressure inside the building when a wind is blowing. This produces a lift that may result in the roof being blown off. Unless the building is well vented, the stagnant air inside can push the roof off.

A PPLICATIONS OF B ERNOULLI ’ S P RINCIPLE In high winds, air pressure above a roof can drastically decrease.

B ASEBALLS Bernoulli’s principle is partly involved in the curved path of spinning balls. When a moving baseball spins, unequal air pressures are produced on opposite sides of the ball. Bernoulli’s principle is partly involved in the curved path of a spinning ball. a. Streamlines are the same on either side of a non- spinning ball. b. A spinning ball produces a crowding of streamlines.

B OATS Passing ships run the risk of a sideways collision. Water flowing between the ships travels faster than water flowing past the outer sides. Streamlines are closer together between the ships than outside. Water pressure acting against the hulls is reduced between the ships. The greater pressure against the outer sides of the ships forces them together.

S HOWER C URTAINS What happens to a bathroom shower curtain when the shower water is turned on full blast? Air near the water stream flows into the lower- pressure stream and is swept downward with the falling water. Air pressure inside the curtain is thus reduced, and the atmospheric pressure outside pushes the curtain inward.

Q UESTION How is horizontal flight possible? When lift equals weight, horizontal flight is possible

Q UESTION 8. If air speed is greater along the top surface of a bird’s wings, pressure of the moving air there is a. unaffected. b. less. c. more. d. turbulent. Explain your answer Answer B: Bernoulli’s Principle states that the quicker the speed of a fluid, the less pressure there is