Oil water Geometric Proof of Archimedes’ principal---From Pressure on a submerged surface Consider a submerged body in an oil-water layered system (shown.

Slides:

Advertisements

Similar presentations

Clicker Question Room Frequency BA

Advertisements

Section 2: Floating and Sinking How can you predict whether an object will float or sink in a fluid? What is the effect of the buoyant force?

The tendency or ability of an object to float.

Chapter 11 – Forces in Fluids

Physics 102 Part II Thermal Physics Moza M. Al-Rabban Professor of Physics Fluids (2)

Pertemuan Hydrostatics 2. Bina Nusantara Outline Pressure Forces on Plane Surface Pressure Forces on Curved Surface Pressure on Spillway Sections.

Iceberg off Newfoundland Density,PressureAndBuoyancy.

Floating and Sinking.

The tendency or ability of an object to float.

Sect. 14.4: Buoyant Forces Archimedes’ Principle

Floating and Sinking Think about this…

Static Fluids Fluids are substances, such as liquids and gases, that have no rigidity. A fluid lacks a fixed shape and assumes the shape of its container.

The lifting force of the water SWAG. In science, buoyancy is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column.

Lecture 6. EPS 5: 23 Sep Review the concept of the barometric law (hydrostatic balance: each layer of atmosphere must support the weight of the.

Notes – Pressure & Buoyant Force

Fluids - Hydrostatics Physics 6B Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB.

Fluids - Hydrostatics Physics 6B Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB.

Faculty of Engineering

Chapter 3 Review Study Guide Vocab Challenge.

Chapter 9 Fluid Mechanics. Fluids “A nonsolid state of matter in which the atoms or molecules are free to move past each other, as in a gas or liquid.”

Pharos Univ. ME 259 Fluid Mechanics Static Forces on Inclined and Curved Surfaces.

Physics Chapter 8 Fluid Mechanics

PHYSICS 103: Lecture 18 Archimedes Principle Example Problems Agenda for Today:

Density and Buoyancy. Float? Whether an object will float or not is dependent on the density of the object and the density of the fluid.

Physics. Fluid Mechanics - 1 Session Session Objectives.

Floating and Sinking.  Density is a measure of how closely packed the atoms in a substance are  Density is a physical property  All matter has measurable.

Physics 1B03summer-Lecture 12 1 Fluid Mechanics Pressure Buoyancy.

The fun never stops.... Liquids and Gases can exert forces. – Examples: waves crashing, wind Liquids and Gases can exert forces. – Examples: waves crashing,

February 24, 2014 Homework: Finish reading section 2 and complete cause and effect graphic organizer pg. 79 in NB, Due Wednesday. Do Now: Write down homework.

Floating and Sinking. Buoyancy When you pick up an object underwater it seems much lighter due to the upward force that water and other fluids exert known.

Chapter 19 Liquids.

Chapter 12 Outline Fluid Mechanics Density Pressure Gauge pressure Pascal’s law Buoyancy Archimedes’ principle.

Hydrostatics Lesson 6 © nitatravels. Fluids are Everywhere  Liquids or Gasses  Air is a fluid!!!  Typically take the shape of their container.

Human movement through air and water

 Suppose we lower a cube of some material into a beaker of water:  We may have to hold it in place. Topic 2.2 Extended K – Fluid statics : Archimedes’

Density. (a) define the term density What is density? Density is defined as mass per unit volume.mass Density is defined as mass per unit volume.mass.

Liquids -They always take the shape of their container -They flow or you can pour them.

Buoyancy, Lapse Rate Stability & Convection. Lecture 6. EPS 5: 09 Feb Review the concept of the barometric law (hydrostatic balance: each layer.

PH Force Assignment 1a. Net force is the combination of all forces acting on an object. The net force determines whether an object moves and also in which.

Forces in Fluids Chapter 13. Fluid Pressure  Section 13-1.

CONCEPTUAL PHYSICS Liquids.

1 Bell Ringer What word should we think of when we think of pressure? 2. What is the formula for pressure? 3. What SI unit measures pressure?

Floating and Sinking Whatever floats your boat!. Warm-up 1. Observe the two beakers on the front table and record your observations. 2. Predict- will.

Floating and Sinking Think about this… How is possible for a huge ocean liner like the Titanic to float? How is possible in a few hours for it to become.

The forces from pressure acting on the bottom of this golf ball are greater than those on the top. This produces a net force—called the buoyant force—that.

Chapter 11 Section 2: Floating and sinking Key concepts: what is the effect of the buoyant force? How can you use density to determine whether an object.

L 13 Fluids [2]: Statics  fluids at rest  More on fluids.  How can a steel boat float.  A ship can float in a cup of water!  Today’s weather Today’s.

CST Review Session 6 Density Floating and Sinking Bouyancy.

Chapter 10 Fluids Pressure in Fluids Pressure is defined as the force per unit area. Pressure is a scalar; the units of pressure in the SI system.

Floating and Sinking.

3-3 Floating & Sinking.

Introduction to Fluid Mechanics

To understand pressure

Density and Buoyancy Chapter 11.2 Page 424.

Chapter 12 Section 2.

Layer Thickness and Map Width

3.2 Pressure and the Buoyant Force

Buoyancy & Pressure Ch 2 Section 3.

Floating and Sinking.

Floating and Sinking Chapter 11 Section 2.

Forces in Fluids: Buoyant Force

Buoyancy Buoyant force vs. Weight Apparent weight

Fluid Mechanics – Buoyancy

BUOYANCY AND ARCHIMEDES' PRINCIPLE

Chapter 12 Section 2.

Whatever floats your boat!

Buoyancy The buoyant force is the upward force caused by

Presentation transcript:

oil water Geometric Proof of Archimedes’ principal---From Pressure on a submerged surface Consider a submerged body in an oil-water layered system (shown in cross section in Fig 1) Fig 1 To net upward Buoyancy force F B acting on this body is Net Vertical pressure force Acting UP on bottom (blue) surface Net Vertical pressure Force Acting Down On top (red) surface Pressures always act towards a surface Go to next slide to see how to calculate the vertical pressure forces

oil water Vertical Pressure Force acting on top surface of a submerged solid body Step 1: Imagine that you can separate the top surface from the body and move it horizontally in The fluid oil water Top surface without body Then Since the points A and A’ are at the same depth And we can conclude that the pressure acting On the top of the separated red surface is IDENTICAL to the pressure acting on the Top surface of our body HENCE oil water The Net vertical pressure force acting DOWN on top surface of the SUBMERGED BODY is the Weight of the fluidS ABOVRE the separated red Surface (Shown as a shaded region in Fig 2) Fig 2 F red

Vertical Pressure Force acting UP on BOTTOM surface of a submerged solid body To get the vertical pressure force acting up on the Bottom surface of the submerged body imagine Separating and moving horizontally the bottom (dark blue) surface We know that (since at a point pressure is the same in all directions) if our separated surface is thin, at a point A’-- the value of the pressure on the upper part of the surface MUST match the pressure acting on the lower part of the surface. FURTHER this pressure is equal to the pressure Acting on the matching point A on the lower surface Of the submerged body HENCE the vertical pressure force acting UP on the bottom surface of the submerged body Is the weight of the fluids ABOVE the separated Bottom (Dark Blue) surface (shaded in Fig 3) Fig 3 F blue

oil waterFig 4 Which will be the weight of fluids Contained in in the shaded region Of Fig 4— Which is identical to the weight of fluids displaced by our submerged body Archimedes oil waterFig 2 F red With the vertical pressure forces On our submerged body identified The net upward acting buoyancy force F B is found by Subtracting the weight above the Red surface of Fig 2 Fig 3 F blue From the weight above the dark blue surface in Fig 3 Archimedes