Three Methods for Calculating the Buoyant Force Gleue: Physics

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Three Methods for Calculating the Buoyant Force Gleue: Physics"

Transcription

1 Three Methods for Calculating the Buoyant Force Gleue: Physics Name Hr. The Buoyant Force (F b ) is the apparent loss of weight for an object submerged in a fluid. For example if you have an object immersed in water, you have to exert less force to support the object than you would if the object was not in the water. The object itself did not lose mass, so its weight did not really change. When the object is in the water, the displaced water exerts an upward force on the object in a direction which opposes the downward pull of gravity (mg or weight). Pressure = P = F/A Pressure in a liquid = ρ fluid gh Purpose of the activity: In this activity, you will calculate the buoyant force on an object three different ways. You will compare the three different answers you obtained and contrast the three different methods. METHOD A: Using spring scales. 1. Place the hook mass on the spring scale. You will probably need the blue spring scale. Read the spring scale using the Newton scaling (not the grams scaling). This will be the TRUE WEIGHT of the object.. True Weight = mg = N 2. Fill up your cup (or beaker) about ⅔ filled with water. You want enough water in your beaker to allow you to completely submerge the mass. Place a piece of masking tape on the beaker along the water line. See figure A: Figure A: Beaker filled up ⅔ rds full and tape marking water line edge 3. Now holding the mass and hanger with the spring scale, slowly and carefully dunk the mass into the water so it is completely covered. Hold it above the bottom of the beaker. The water level will displace or rise to a higher level (see Figure B). Read the spring scale as closely as possible. This represents the apparent weight or the tension your hand has to provide to support the mass/hanger. Apparent weight = N. Figure B: Mass dunked into the water. Read the new spring scale reading. Figure C: Tape marking the new level of the displaced water. Three Methods for Calculating the Buoyant Force Activity, 01/23/13, p. 1

2 4. With the mass still immersed into the water, place another piece of masking tape level with the new position of the water line (Figure C). Your beaker should now have two pieces of tape showing the water levels before and after the mass was immersed. 5. One method of calculating the buoyant force (F b ) is to subtract the apparent weight of the mass in the water from the true weight (the weight of the mass in air). F b = True weight apparent weight OR F b = line 1 line 3. F b = N (true weight ) - N (apparent weight) = N 6. Carefully remove the mass from the water allowing excess water to drip back into the beaker. You can take the hanger and spring scale off of the mass. Please make sure to dry off the mass and spring scale using paper towels METHOD 2 for calculating the buoyant force. Using Archimedes Law 1. A second method for obtaining F b is using Archimedes Law. Archimedes Law states that F b = weight of the water displaced. If we could collect this water and weigh it, then that calculation would be = F b. This is what the two pieces of tape are for on your beaker. 2. Pour the water (from top tape to bottom tape) into an empty cup. 3. Now at this point, we need to weigh this amount of water. Now take this cup to the digital balance and find its mass. Make sure to subtract the mass of a similar cup. a) Mass of displaced water = grams b) Now divide this by 1000 to put this answer in kg: kg 4. We need to determine the weight of this displaced water so take your answer to 3b) and multiply this by 9.8 m/s 2. Weight of the displaced water = N. 6. This weight represents another way to calculate the buoyant force F b (Archimedes Law). So, F b = N (rewrite your answer from #5.) METHOD 3 for calculating the buoyant force. (F b = ρ fluid Vg) 1. In class, we discussed a third method for finding the buoyant force. I showed you that how to derive the following formula: F b = ρ fluid Vg, where ρ fluid is the density of the fluid the object is in, V is the volume of the fluid displaced or the volume of the object, and g is the acceleration due to gravity, 9.8 m/s 2. Three Methods for Calculating the Buoyant Force Activity, 01/23/13, p. 2

3 2. Well, we know what ρ fluid is as we are using water as our fluid. The density of water is 1 g/cm 3 in chemistry units or in physics units = 1000 kg/m We also know what g is (9.8 m/s 2 ). 4. So, the only thing we need to calculate here is V, the volume of the object or fluid displaced. Measure the two dimensions of the cylinder with a ruler. Measure in cm to the nearest hundredth. For example, one of the sides may be 0.95 cm long (this would be the same as 9.5 mm). Height (h) radius (r) cm cm Convert the Height (h) to meters [divide by 100] = meters Convert the radius (r) to meters [divide by 100] = meters 5. Consequently, we can find the volume of the cylinder by using the mathematical equation for the Volume of a cylinder: V = (π r 2 ) h making sure to use the radius and height measurements you found placed in METERS. The Volume of your cylindrical mass = m Now we are ready to find the buoyant force, using the equation given earlier, (F b = ρ fluid V g). Calculate your F b by multiplying the three variables: - the density of the fluid (water) =1000 kg/m 3 - the volume just obtained for the cylindrical mass (line 5 of this page) and - g (9.8 m/s 2 ) F b = ρ fluid Vg = N Compare and Contrast: So we have found three ways to calculate the buoyant force (F b ): - Spring Scale method (line 5, page 2 of lab) F b = N - Weight of the displaced water also called Archimedes principle (line 6, page 2 of lab) F b = N - Using F b = ρ fluid Vg (from line 6 directly above) F b = N. We don t know exactly what the F b should be but we could average our results from these three methods: F b (average) = N. Three Methods for Calculating the Buoyant Force Activity, 01/23/13, p. 3

4 To determine if one method was better than another, we could do a percentage error (%) for each method. In this case, percentage error can be found using the following equation: Fb( method1,2, or3) Fb( average) x Fb( average) % error = 100% Find your % errors associated with each method: - % error Spring Scale method: % - % error Weight of the displaced water method: % - % error F b = ρ fluid Vg method % Questions: 1. So which method gave you the best results as referenced to the average F b? 2. Now compare and contrast the methods to find F b. Which method seemed the easiest to do? Explain why 3. What sorts of errors are associated with method 2: weighing the displaced water? 4. Draw a force diagram with the mass held by the string. You should have two forces. Make sure you label them correctly. Three Methods for Calculating the Buoyant Force Activity, 01/23/13, p. 4

5 5. Draw a force diagram with the mass held by the string in the water. You should have three forces. Make sure you label them correctly. 6. How would the buoyant force change if we did the same experiment with ocean water? The density of ocean water is slightly higher at 1025 kg/m 3 than regular water (1000 kg/m 3 ). 7. The buoyant force is the location where the buoyant force vector acts. Compare this to the center of mass. The weight vector would act at this location. Check out these pictures of the centers of buoyancy and mass for a person. Because of the location and action of the lungs, the center of buoyancy is anatomically above the center of mass. People have a hard time floating perfectly horizontally on water. Usually their legs are under the water while the chest area is above the water line. Can you explain why using the positions of the centers of buoyancy and mass? Three Methods for Calculating the Buoyant Force Activity, 01/23/13, p. 5

Lab 11 Density and Buoyancy

Lab 11 Density and Buoyancy b Lab 11 Density and uoyancy What You Need To Know: Density A concept that you will be using frequently in today s lab is called density. Density is a measurement of an object s mass per unit volume of

More information

Activity P13: Buoyant Force (Force Sensor)

Activity P13: Buoyant Force (Force Sensor) Activity P13: Buoyant Force (Force Sensor) Equipment Needed Qty Equipment Needed Qty Economy Force Sensor (CI-6746) 1 Mass and Hanger Set (ME-9348) 1 Base and Support Rod (ME-9355) 1 Ruler, metric 1 Beaker,

More information

PHYS 1405 Conceptual Physics I Laboratory # 8 Density and Buoyancy. Investigation: How can we identify a substance by figuring out its density?

PHYS 1405 Conceptual Physics I Laboratory # 8 Density and Buoyancy. Investigation: How can we identify a substance by figuring out its density? PHYS 1405 Conceptual Physics I Laboratory # 8 Density and Buoyancy Investigation: How can we identify a substance by figuring out its density? What to measure: Volume, mass. Measuring devices: Calipers,

More information

Buoyant Force and Archimedes' Principle

Buoyant Force and Archimedes' Principle Buoyant Force and Archimedes' Principle Introduction: Buoyant forces keep Supertankers from sinking and party balloons floating. An object that is more dense than a liquid will sink in that liquid. If

More information

Buoyancy. Please Circle Your Lab day: M T W T F

Buoyancy. Please Circle Your Lab day: M T W T F Please Circle Your Lab day: M T W T F Name: Project #1: Show that the buoyant force (F B ) equals fluid gv object by first calculating fluid gv object, and then by measuring F B (indirectly) using the

More information

Buoyant Force and Archimedes Principle

Buoyant Force and Archimedes Principle Buoyant Force and Archimedes Principle Predict the behavior of fluids as a result of properties including viscosity and density Demonstrate why objects sink or float Apply Archimedes Principle by measuring

More information

LAB #3: MEASURING SPECIFIC GRAVITY AND DENSITY. Set-up and Materials for Experiment

LAB #3: MEASURING SPECIFIC GRAVITY AND DENSITY. Set-up and Materials for Experiment Set-up and Materials for Experiment 1 OVERVIEW The mass density of a substance is a measure of the mass that that substance contains in a given volume. Mathematically is written: ρ = m V ( Density = Volume

More information

Activity P13: Buoyant Force (Force Sensor)

Activity P13: Buoyant Force (Force Sensor) July 21 Buoyant Force 1 Activity P13: Buoyant Force (Force Sensor) Concept DataStudio ScienceWorkshop (Mac) ScienceWorkshop (Win) Archimedes Principle P13 Buoyant Force.DS P18 Buoyant Force P18_BUOY.SWS

More information

Buoyancy Problem Set

Buoyancy Problem Set Buoyancy Problem Set 1) A stone weighs 105 lb in air. When submerged in water, it weighs 67.0 lb. Find the volume and specific gravity of the stone. (Specific gravity of an object: ratio object density

More information

Physics 181- Summer 2011 - Experiment #8 1 Experiment #8, Measurement of Density and Archimedes' Principle

Physics 181- Summer 2011 - Experiment #8 1 Experiment #8, Measurement of Density and Archimedes' Principle Physics 181- Summer 2011 - Experiment #8 1 Experiment #8, Measurement of Density and Archimedes' Principle 1 Purpose 1. To determine the density of a fluid, such as water, by measurement of its mass when

More information

Activity P13: Buoyant Force (Force Sensor)

Activity P13: Buoyant Force (Force Sensor) Name Class Date Activity P13: Buoyant Force (Force Sensor) Concept DataStudio ScienceWorkshop (Mac) ScienceWorkshop (Win) Archimedes Principle P13 Buoyant Force.DS P18 Buoyant Force P18_BUOY.SWS Equipment

More information

ERRORS IN SIMPLE MEASUREMENTS

ERRORS IN SIMPLE MEASUREMENTS ERRORS IN SIMPLE MEASUREMENTS EA1-1 Objective: To learn how to estimate the uncertainties in direct and indirect measurements. In this lab you will determine the volume, mass and density of homogenous

More information

Archimedes' Principle

Archimedes' Principle Archimedes' Principle Introduction Archimedes' Principle states that the upward buoyant force exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the

More information

Buoyant Force. Goals and Introduction

Buoyant Force. Goals and Introduction Buoyant Force Goals and Introduction When an object is placed in a fluid, it either floats or sinks. While the downward gravitational force, F g, still acts on the object, an object in a fluid is also

More information

Archimedes Principle. Biological Systems

Archimedes Principle. Biological Systems Archimedes Principle Introduction Many of the substances we encounter in our every day lives do not have rigid structure or form. Such substances are called fluids and can be divided into two categories:

More information

Forces. Definition Friction Falling Objects Projectiles Newton s Laws of Motion Momentum Universal Forces Fluid Pressure Hydraulics Buoyancy

Forces. Definition Friction Falling Objects Projectiles Newton s Laws of Motion Momentum Universal Forces Fluid Pressure Hydraulics Buoyancy Forces Definition Friction Falling Objects Projectiles Newton s Laws of Motion Momentum Universal Forces Fluid Pressure Hydraulics Buoyancy Definition of Force Force = a push or pull that causes a change

More information

Student Exploration: Archimedes Principle

Student Exploration: Archimedes Principle Name: Date: Student Exploration: Archimedes Principle Vocabulary: Archimedes principle, buoyant force, density, displace, mass, volume, weight Prior Knowledge Questions (Do these BEFORE using the Gizmo.)

More information

Eighth Grade, Density To Float or Not to Float? 2004 Colorado Unit Writing Project 1

Eighth Grade, Density To Float or Not to Float? 2004 Colorado Unit Writing Project 1 Density To Float or Not to Float? That is the Question! Grade Level or Special Area: Eighth Grade Science Written by: Aida Peterson, Clear Lake Middle School, Denver, Colorado Length of Unit: Twelve lessons

More information

Density. Part I: How Dense Is It?

Density. Part I: How Dense Is It? Density Density Part I: How Dense Is It? Everything on Earth is made of matter. Matter is anything that has mass and takes up space. Matter is as simple as a single element or as complex as the entire

More information

"Physics Floats My Boat

Physics Floats My Boat "Physics Floats My Boat A Modeling Approach to Teaching Archimedes Principle & Buoyant Force Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid

More information

The Density of Liquids and Solids

The Density of Liquids and Solids The Density of Liquids and Solids Objectives The objectives of this laboratory are: a) To determine the density of pure water; b) To determine the density of aluminum (applying the technique of water displacement)

More information

Density and Archimedes Principle

Density and Archimedes Principle Density and Archimedes Principle Objectives: To understand the concept of density and its relationship to various materials. To understand and use Archimedes Principle. Equipment: Dial calipers, Graduated

More information

Density and Archimedes Principle

Density and Archimedes Principle Density and Archimedes Principle Objectives: To understand the concept of density and its relationship to various materials. To understand and use Archimedes Principle. Equipment: Dial calipers, Graduated

More information

13.3 Buoyancy. Buoyant Force

13.3 Buoyancy. Buoyant Force 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 acts upward on the ball. Buoyant Force What is

More information

Mercury is poured into a U-tube as in Figure (14.18a). The left arm of the tube has crosssectional

Mercury is poured into a U-tube as in Figure (14.18a). The left arm of the tube has crosssectional Chapter 14 Fluid Mechanics. Solutions of Selected Problems 14.1 Problem 14.18 (In the text book) Mercury is poured into a U-tube as in Figure (14.18a). The left arm of the tube has crosssectional area

More information

A Novel Way to Measure the Density of a Solid. By David Chandler, Porterville College. David@DavidChandler.com

A Novel Way to Measure the Density of a Solid. By David Chandler, Porterville College. David@DavidChandler.com A Novel Way to Measure the Density of a Solid By David Chandler, Porterville College David@DavidChandler.com I was recently explaining to a middle school teacher how to measure the density of a solid object

More information

25ml graduated. dish soap 100ml graduated cylinders. cylinders. Metric ruler with mm divisions. digital scale

25ml graduated. dish soap 100ml graduated cylinders. cylinders. Metric ruler with mm divisions. digital scale You are challenged to get your film canister to float while filled with the most weight you can. The film canisters will not be capped, so if they go under water at all, they will sink. You want to get

More information

Viscosity: The Fluids Lab Teacher Version

Viscosity: The Fluids Lab Teacher Version Viscosity: The Fluids Lab Teacher Version California Science Content Standards: 1. Motion and Forces: Newton's laws predict the motion of most objects. 1b. Students know that when forces are balanced,

More information

Newton s Third Law: A Verification with Buoyancy Forces

Newton s Third Law: A Verification with Buoyancy Forces Newton s Third Law: A Verification with Buoyancy Forces Barry Feierman - April 2013 SEPS/AAPT Drexel University Newton s Third Law is the law of interaction. For every force that acts on one object, there

More information

Name Partner Date Class

Name Partner Date Class Name Partner Date Class FLUIDS Part 1: Archimedes' Principle Equipment: Dial-O-Gram balance, small beaker (150-250ml), metal specimen, string, calipers. Object: To find the density of an object using Archimedes'

More information

Pascal s Principle. Any change in the pressure of a fluid is transmitted uniformly in all directions throughout the fluid.

Pascal s Principle. Any change in the pressure of a fluid is transmitted uniformly in all directions throughout the fluid. Pascal s Principle What happens inside a fluid when pressure is exerted on it? Does pressure have a direction? Does it transmit a force to the walls or bottom of a container? Any change in the pressure

More information

Chapter 3 Student Reading

Chapter 3 Student Reading Chapter 3 Student Reading If you hold a solid piece of lead or iron in your hand, it feels heavy for its size. If you hold the same size piece of balsa wood or plastic, it feels light for its size. The

More information

Lab: Vectors. You are required to finish this section before coming to the lab. It will be checked by one of the lab instructors when the lab begins.

Lab: Vectors. You are required to finish this section before coming to the lab. It will be checked by one of the lab instructors when the lab begins. Lab: Vectors Lab Section (circle): Day: Monday Tuesday Time: 8:00 9:30 1:10 2:40 Name Partners Pre-Lab You are required to finish this section before coming to the lab. It will be checked by one of the

More information

General Physics (PHY 2130)

General Physics (PHY 2130) General Physics (PHY 30) Lecture 3 Solids and fluids buoyant force Archimedes principle Fluids in motion http://www.physics.wayne.edu/~apetrov/phy30/ Lightning Review Last lecture:. Solids and fluids different

More information

Pre-Lab Exercises Lab 1: Scientific Measurement

Pre-Lab Exercises Lab 1: Scientific Measurement Pre-Lab Exercises Lab 1: Scientific Measurement Name Date Section 1. What is a hypothesis? 2. One meter equals millimeters. 3. Which has a larger volume, a liter or a quart? 4. If a cube had a volume of

More information

Stations Lab: Scientific Measurement

Stations Lab: Scientific Measurement Stations Lab: Scientific Measurement Introduction Every measurement has an uncertainty, or built-in error. This error is due to limitations in the measurement scale, the manufacturing process, and the

More information

Mass and Volume Relationships

Mass and Volume Relationships Mass and Volume Relationships Objective: The purpose of this laboratory exercise is to become familiar with some of the basic relationships and units used by scientists. In this experiment you will perform

More information

Force. Net Force Mass. Acceleration = Section 1: Weight. Equipment Needed Qty Equipment Needed Qty Force Sensor 1 Mass and Hanger Set 1 Balance 1

Force. Net Force Mass. Acceleration = Section 1: Weight. Equipment Needed Qty Equipment Needed Qty Force Sensor 1 Mass and Hanger Set 1 Balance 1 Department of Physics and Geology Background orce Physical Science 1421 A force is a vector quantity capable of producing motion or a change in motion. In the SI unit system, the unit of force is the Newton

More information

Density. Part 1: What is Density?

Density. Part 1: What is Density? Density Part 1: What is Density? Starter Activity Which is heavier, steel or wood? Density We can use a number to describe how heavy something is for its size. Density is the mass per unit of volume. To

More information

Physics 1114: Unit 6 Homework: Answers

Physics 1114: Unit 6 Homework: Answers Physics 1114: Unit 6 Homework: Answers Problem set 1 1. A rod 4.2 m long and 0.50 cm 2 in cross-sectional area is stretched 0.20 cm under a tension of 12,000 N. a) The stress is the Force (1.2 10 4 N)

More information

Described by Isaac Newton

Described by Isaac Newton Described by Isaac Newton States observed relationships between motion and forces 3 statements cover aspects of motion for single objects and for objects interacting with another object An object at rest

More information

AP2 Fluids. Kinetic Energy (A) stays the same stays the same (B) increases increases (C) stays the same increases (D) increases stays the same

AP2 Fluids. Kinetic Energy (A) stays the same stays the same (B) increases increases (C) stays the same increases (D) increases stays the same A cart full of water travels horizontally on a frictionless track with initial velocity v. As shown in the diagram, in the back wall of the cart there is a small opening near the bottom of the wall that

More information

Pressure In A Fluid. GE Define fluid in your own words. 2. Is a liquid a fluid? Is a gas a fluid? Explain your reasoning.

Pressure In A Fluid. GE Define fluid in your own words. 2. Is a liquid a fluid? Is a gas a fluid? Explain your reasoning. HPP Activity 38v1 Pressure In A Fluid Note that this unit contains the word "fluid" in the title. Let us carry on by examining the relationship between pressure and fluids. Exploration GE 1. 1. Define

More information

Concept Questions Archimedes Principle. 8.01t Nov 24, 2004

Concept Questions Archimedes Principle. 8.01t Nov 24, 2004 Concept Questions Archimedes Principle 8.01t Nov 24, 2004 Pascal s Law Pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing vessel

More information

Section 1 What Is Matter?

Section 1 What Is Matter? Section 1 What Is Matter? Key Concept Matter is anything that has mass and takes up space. Matter can be described in terms of its volume, mass, and weight. What You Will Learn All matter has volume and

More information

Simulating Microgravity with Buoyancy A Space School Lesson Plan

Simulating Microgravity with Buoyancy A Space School Lesson Plan ASTRONAUT TRAINING...UNDERWATER Simulating Microgravity with Buoyancy A Space School Lesson Plan by Bill Andrake, Swampscott Middle School Swampscott, Massachusetts Science Lesson: Buoyancy - Based on

More information

Experiment #4 Sugar in Soft Drinks and Fruit Juices. Laboratory Overview CHEM 1361. August 2010

Experiment #4 Sugar in Soft Drinks and Fruit Juices. Laboratory Overview CHEM 1361. August 2010 Experiment #4 Sugar in Soft Drinks and Fruit Juices Laboratory Overview CHEM 1361 August 2010 Gary S. Buckley, Ph.D. Department of Physical Sciences Cameron University Learning Objectives Relate density

More information

Clicker Questions Chapter 10

Clicker Questions Chapter 10 Clicker Questions Chapter 10 2010 Pearson Education, Inc. Essential College Physics Rex/Wolfson Question 10.1 Density If one material has a higher density than another, does this mean that the molecules

More information

Accuracy and Precision of Laboratory Glassware: Determining the Density of Water

Accuracy and Precision of Laboratory Glassware: Determining the Density of Water Accuracy and Precision of Laboratory Glassware: Determining the Density of Water During the semester in the general chemistry lab, you will come into contact with various pieces of laboratory glassware.

More information

CHAPTER 3: FORCES AND PRESSURE

CHAPTER 3: FORCES AND PRESSURE CHAPTER 3: FORCES AND PRESSURE 3.1 UNDERSTANDING PRESSURE 1. The pressure acting on a surface is defined as.. force per unit. area on the surface. 2. Pressure, P = F A 3. Unit for pressure is. Nm -2 or

More information

MEASUREMENT OF MASS, WEIGHT AND DENSITY

MEASUREMENT OF MASS, WEIGHT AND DENSITY 1 MEASUREMENT OF MASS, WEIGHT AND DENSITY I. Tick ( ) the most appropriate answer. 1. The SI unit of weight is (a) kg (b) newton (c) newton-metre (d) km 2. We use a beam balance to measure (a) weight (b)

More information

Name Date Hour. Buoyancy

Name Date Hour. Buoyancy Name Date Hour Buoyancy Consider: If I gave you an object that you had never seen before and it was made of unknown material and then asked you whether or not it would float in water, what would you base

More information

2 Floating and Sinking

2 Floating and Sinking Section 2 Floating and Sinking 2 Floating and Sinking Objectives After this lesson, students will be able to M.3.2.1 Describe the effect of the buoyant force. M.3.2.2 Explain how the density of an object

More information

Buoyancy and Archimedes Principle. Buoyancy and Archimedes Principle Assume block is in equilibrium.

Buoyancy and Archimedes Principle. Buoyancy and Archimedes Principle Assume block is in equilibrium. Assume block is in equilibrium. Then upward forces must equal downward forces. Upward force: pressure from fluid Downward force: atmospheric pressure plus weight Therefore In this case, the object is less

More information

DENSITY OF LIQUIDS & SOLIDS Experiment 2

DENSITY OF LIQUIDS & SOLIDS Experiment 2 Physical Science 14 DENSITY OF LIQUIDS & SOLIDS Experiment 2 INTRODUCTION: Density is a measure of the quantity of mass of a substance that occupies one unit of volume. In other words, the density of a

More information

Chapter 13 Fluids. Copyright 2009 Pearson Education, Inc.

Chapter 13 Fluids. Copyright 2009 Pearson Education, Inc. Chapter 13 Fluids 13-1 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

LESSON 15: Floating Paper Clips ESTIMATED TIME Setup: 5 minutes Procedure: 5 10 minutes

LESSON 15: Floating Paper Clips ESTIMATED TIME Setup: 5 minutes Procedure: 5 10 minutes LESSON 15: Floating Paper Clips ESTIMATED TIME Setup: 5 minutes Procedure: 5 10 minutes DESCRIPTION Utilize a careful technique to make a paper clip float on top of water. OBJECTIVE This lesson demonstrates

More information

Pool Cubes: Buoyancy

Pool Cubes: Buoyancy Name Section Date CONCEPTUAL PHYSICS Liquids: Buoyancy Tech Lab Buoyancy and Flotation Simulation Pool Cubes: Buoyancy Purpose To investigate the nature of the buoyant force and to see the role it plays

More information

Fluids Quiz Science 8

Fluids Quiz Science 8 Fluids Quiz Science 8 Introduction to Fluids 1. What are fluids essential for? Industrial Processes 2. What devices use knowledge of fluids? Hydraulic and pneumatic devices and machines A Close-Up Look

More information

2.1 Force and Motion Kinematics looks at velocity and acceleration without reference to the cause of the acceleration.

2.1 Force and Motion Kinematics looks at velocity and acceleration without reference to the cause of the acceleration. 2.1 Force and Motion Kinematics looks at velocity and acceleration without reference to the cause of the acceleration. Dynamics looks at the cause of acceleration: an unbalanced force. Isaac Newton was

More information

Chapter 15. FLUIDS. 15.1. What volume does 0.4 kg of alcohol occupy? What is the weight of this volume? m m 0.4 kg. ρ = = ; ρ = 5.

Chapter 15. FLUIDS. 15.1. What volume does 0.4 kg of alcohol occupy? What is the weight of this volume? m m 0.4 kg. ρ = = ; ρ = 5. Chapter 15. FLUIDS Density 15.1. What volume does 0.4 kg of alcohol occupy? What is the weight of this volume? m m 0.4 kg ρ = ; = = ; = 5.06 x 10-4 m ρ 790 kg/m W = D = ρg = 790 kg/m )(9.8 m/s )(5.06 x

More information

Chapter 9: The Behavior of Fluids

Chapter 9: The Behavior of Fluids Chapter 9: The Behavior of Fluids 1. Archimedes Principle states that A. the pressure in a fluid is directly related to the depth below the surface of the fluid. B. an object immersed in a fluid is buoyed

More information

CHM 130LL: Introduction to the Metric System

CHM 130LL: Introduction to the Metric System CHM 130LL: Introduction to the Metric System In this experiment you will: Determine the volume of a drop of water using a graduated cylinder Determine the volume of an object by measuring its dimensions

More information

F mg (10.1 kg)(9.80 m/s ) m

F mg (10.1 kg)(9.80 m/s ) m Week 9 homework IMPORTANT NOTE ABOUT WEBASSIGN: In the WebAssign versions of these problems, various details have been changed, so that the answers will come out differently. The method to find the solution

More information

A1. An object of mass m is projected vertically from the surface of a planet of radius R p and mass M p with an initial speed v i.

A1. An object of mass m is projected vertically from the surface of a planet of radius R p and mass M p with an initial speed v i. OBAFMI AWOLOWO UNIVRSITY, IL-IF, IF, NIGRIA. FACULTY OF SCINC DPARTMNT OF PHYSICS B.Sc. (Physics) Degree xamination PHY GNRAL PHYSICS I TUTORIAL QUSTIONS IN GRAVITATION, FLUIDS AND OSCILLATIONS SCTION

More information

Experiment 3 Introduction to Density INTRODUCTION

Experiment 3 Introduction to Density INTRODUCTION Experiment 3 Introduction to Density INTRODUCTION The purpose of this experiment is to understand the meaning and significance of the density of a substance. Density is a basic physical property of a homogeneous

More information

Chapter 4. Forces and Newton s Laws of Motion. continued

Chapter 4. Forces and Newton s Laws of Motion. continued Chapter 4 Forces and Newton s Laws of Motion continued Clicker Question 4.3 A mass at rest on a ramp. How does the friction between the mass and the table know how much force will EXACTLY balance the gravity

More information

Chemistry 212. Density

Chemistry 212. Density Chemistry 212 Density LEARNING OBJECTIVES To study density as a method of identification. To determine the densities of regularly and irregularly shaped solids as well as of pure liquids and solutions.

More information

1. Multimedia presentation (PowerPoint or video) 2.

1. Multimedia presentation (PowerPoint or video) 2. UC Irvine FOCUS! 5 E Lesson Plan Title: Density is a Periodic Property Grade Level and Course: 8 th grade physical science, 10 th and 11 th grade chemistry Materials: Lead Shot, Pb 35 40 g Silicon lumps,

More information

MEASUREMENT OF MASS, WEIGHT AND DENSITY

MEASUREMENT OF MASS, WEIGHT AND DENSITY MEASUREMENT OF MASS, WEIGHT AND DENSITY I. Tick (t') the most appropriate answer. 1. The SI unit of weight is (a) kg (b) newton (c) newton-metre (d) km 2. We use a beam balance to measure (a) weight (b)

More information

Unit 1 Lab Safety, Measurement, Density, Buoyancy and Controlled Experiment

Unit 1 Lab Safety, Measurement, Density, Buoyancy and Controlled Experiment Unit 1 Lab Safety, Measurement, Density, Buoyancy and Controlled Experiment NYS Standards: MST Standard #1 MST Standard #4 3.1h Density can be described as the amount of matter that is in a given amount

More information

Buoyancy. What floats your boat?

Buoyancy. What floats your boat? Buoyancy What floats your boat? Sink or float? Test The cube sinks to the bottom. WHY? Weight Due to the pulling force of gravity both the cube and the water have the property of weight. Gravity Gravity

More information

Vector Lab Teacher s Guide

Vector Lab Teacher s Guide Vector Lab Teacher s Guide Objectives: 1. Use s to show addition of force vectors. 2. Vector addition using tip-to-tail method and trigonometry. Materials: Each group must have: 2 ring stands, 2 s, 4 washers,

More information

Density, Mass, and Volume Grade 3-6

Density, Mass, and Volume Grade 3-6 Density, Mass, and Volume Grade 3-6 BACKGROUND Matter is everything that takes up space. Matter can be found in three forms, solid, liquid, and gas. The mass of an object is the amount of matter that is

More information

Physics 103 CQZ1 Solutions and Explanations. 1. All fluids are: A. gases. B. liquids. C. gases or liquids. D. non-metallic. E.

Physics 103 CQZ1 Solutions and Explanations. 1. All fluids are: A. gases. B. liquids. C. gases or liquids. D. non-metallic. E. Physics 03 CQZ Solutions and Explanations. All fluids are: A. gases B. liquids C. gases or liquids D. non-metallic E. transparent Matter is classified as solid, liquid, gas, and plasma. Gases adjust volume

More information

g

g General Chemistry I (FC, 09-10) Lab # 1: The Densities of Solids and Liquids The density of a material may be defined as mass per unit volume. The units generally used for solids and liquids are g/ml,

More information

Physics 1020 Laboratory #6 Equilibrium of a Rigid Body. Equilibrium of a Rigid Body

Physics 1020 Laboratory #6 Equilibrium of a Rigid Body. Equilibrium of a Rigid Body Equilibrium of a Rigid Body Contents I. Introduction II. III. IV. Finding the center of gravity of the meter stick Calibrating the force probe Investigation of the angled meter stick V. Investigation of

More information

Density of Materials. Density p.1. v061813_810pm

Density of Materials. Density p.1. v061813_810pm Density of Materials v061813_810pm Objective: The student will be able to determine the density of a regular solid, an irregular solid, a liquid, and test their understanding of density by determination

More information

Fluids I. Level : Conceptual Physics/Physics I. Q1) Order the following materials from lowest to greatest according to their densities.

Fluids I. Level : Conceptual Physics/Physics I. Q1) Order the following materials from lowest to greatest according to their densities. Fluids I Level : Conceptual Physics/Physics I Teacher : Kim 1. Density One of the properties of any substances (solids, liquids and gases) is the measure of how tightly the material is packed together.

More information

Measurement & Density Chemistry 121 CHEM 121

Measurement & Density Chemistry 121 CHEM 121 CHEM 121 Measurement & Density Chemistry 121 Introduction The ability to make accurate and detailed observations are crucial in science. This lab will focus on quantitative observations, more specifically,

More information

A Determination of g, the Acceleration Due to Gravity, from Newton's Laws of Motion

A Determination of g, the Acceleration Due to Gravity, from Newton's Laws of Motion A Determination of g, the Acceleration Due to Gravity, from Newton's Laws of Motion Objective In the experiment you will determine the cart acceleration, a, and the friction force, f, experimentally for

More information

Educational Innovations

Educational Innovations Educational Innovations DEN-350 Steel Sphere Density Kit Target Age Group: 3-5, 6-8 National Standards K-4 Physical Science Properties of objects and materials Density, weight and volume are properties

More information

Physics 6B. Philip Lubin

Physics 6B. Philip Lubin Physics 6B Philip Lubin prof@deepspace.ucsb.edu http://www.deepspace.ucsb.edu/classes/physics-6b-spring-2015 Course Outline Text College Physics Freedman 2014 Cover Chap 11-13, 16-21 Chap 11- Fluid Chap

More information

Physics Principles of Physics

Physics Principles of Physics Physics 1408-002 Principles of Physics Lecture 21 Chapter 13 April 2, 2009 Sung-Won Lee Sungwon.Lee@ttu.edu Announcement I Lecture note is on the web Handout (6 slides/page) http://highenergy.phys.ttu.edu/~slee/1408/

More information

Density. Density is how concentrated or compact matter is.

Density. Density is how concentrated or compact matter is. Density Density is how concentrated or compact matter is. Packing snow into snowballs increases its density. You are squeezing large amounts of matter into small volumes of space. Equation for Density

More information

Fluids flow conform to shape of container. Mass: mass density, Forces: Pressure Statics: Human body 50-75% water, live in a fluid (air)

Fluids flow conform to shape of container. Mass: mass density, Forces: Pressure Statics: Human body 50-75% water, live in a fluid (air) Chapter 11 - Fluids Fluids flow conform to shape of container liquids OR gas Mass: mass density, Forces: Pressure Statics: pressure, buoyant force Dynamics: motion speed, energy friction: viscosity Human

More information

Archimedes. F b (Buoyant Force) DEMO. Identical Size Boxes Which has larger F B. Which is heavier. styrofoam (1 cm 3 ) steel ( 1 cm 3 )

Archimedes. F b (Buoyant Force) DEMO. Identical Size Boxes Which has larger F B. Which is heavier. styrofoam (1 cm 3 ) steel ( 1 cm 3 ) Fluids Density 1 F b (Buoyant Force) DEMO Archimedes Identical Size Boxes Which has larger F B Which is heavier styrofoam (1 cm 3 ) steel ( 1 cm 3 ) steel ( 1 cm 3 ) styrofoam (1 cm 3 ) 2 Finding the Weight

More information

Measurement and Calibration

Measurement and Calibration Purpose To gain an understanding of the relationships that exist between density, mass, and volume while calibrating laboratory glassware. Introduction Measurement is a regular part of life. For example,

More information

Measurement Lab. Materials Cubes Rectangular Solids Cylinders Rulers

Measurement Lab. Materials Cubes Rectangular Solids Cylinders Rulers Measurement Lab Materials Cubes Rectangular Solids Cylinders Rulers Procedure Part One 1. Obtain a cube and measure the length, width, and height. Be sure to include an estimated place in your measurement.

More information

Physics 113 Exam #4 Angular momentum, static equilibrium, universal gravitation, fluid mechanics, oscillatory motion (first part)

Physics 113 Exam #4 Angular momentum, static equilibrium, universal gravitation, fluid mechanics, oscillatory motion (first part) Physics 113 Exam #4 Angular momentum, static equilibrium, universal gravitation, fluid mechanics, oscillatory motion (first part) Answer all questions on this examination. You must show all equations,

More information

Tutorial 4. Buoyancy and floatation

Tutorial 4. Buoyancy and floatation Tutorial 4 uoyancy and floatation 1. A rectangular pontoon has a width of 6m, length of 10m and a draught of 2m in fresh water. Calculate (a) weight of pontoon, (b) its draught in seawater of density 1025

More information

GX-200/300/400/600/800/1000 GF-200/300/400/600/800/1000

GX-200/300/400/600/800/1000 GF-200/300/400/600/800/1000 GX-13 Density Determination Kit For GX-200/300/400/600/800/1000 GF-200/300/400/600/800/1000 INSTRUCTION MANUAL WM+PD4000134D 2005 A&D Company Ltd. All rights reserved. No part of this publication may be

More information

Chemistry and Measurement

Chemistry and Measurement Chapter 1 Chemistry and Measurement Concept Check 1.1 Matter can be represented as being composed of individual units. For example, the smallest individual unit of matter can be represented as a single

More information

LABORATORY 9. Simple Harmonic Motion

LABORATORY 9. Simple Harmonic Motion LABORATORY 9 Simple Harmonic Motion Purpose In this experiment we will investigate two examples of simple harmonic motion: the mass-spring system and the simple pendulum. For the mass-spring system we

More information

Experiment 5: Newton s Second Law

Experiment 5: Newton s Second Law Name Section Date Introduction Experiment : Newton s Second Law In this laboratory experiment you will consider Newton s second law of motion, which states that an object will accelerate if an unbalanced

More information

Pressure in Fluids. Introduction

Pressure in Fluids. Introduction Pressure in Fluids Introduction In this laboratory we begin to study another important physical quantity associated with fluids: pressure. For the time being we will concentrate on static pressure: pressure

More information

A. The Metric System (this section can be completed before or during lab)

A. The Metric System (this section can be completed before or during lab) Lab I: INTRODUCTION TO MEASURING TECHNIQUES The basis for obtaining scientific knowledge is systematic observation and experimentation. A key component of most scientific investigations is measurement.

More information

Name Stamp Here Partner Lecture Instructor Date

Name Stamp Here Partner Lecture Instructor Date CHEM& 151 Winter 2009 EQUIPMENT, MEASUREMENT, DENSITY, AND GRAPHING Prelab attached (p. 17-18) Fill-in - Refer to your Laboratory Procedures handout for how to do your fill-in lab reports. Name Stamp Here

More information

XI / PHYSICS FLUIDS IN MOTION 11/PA

XI / PHYSICS FLUIDS IN MOTION 11/PA Viscosity It is the property of a liquid due to which it flows in the form of layers and each layer opposes the motion of its adjacent layer. Cause of viscosity Consider two neighboring liquid layers A

More information