Abstract:
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Sophomore students from Occupational Therapy in De La Salle Health Sciences Institute had conducted an experiment concerning Archimedes’ Principle to determine the density of solids and liquids using Archimedes’ Principle. For the density of solids, they had made use of spring balance to measure the mass of the metal samples, which were tied via string, in air and when immersed inside a 2000mL beaker, where H2O lies. They had computed the density of each sample metal using the formula: ϱs = maϱw / ma - mw and computed a percentage error. As for the density of liquids, they had filled a graduated cylinder with 250mL liquid sample and had immersed a hydrometer. They had immersed a sample metal in the liquid sample and had measured its mass in air and beneath the liquid. They also had measured the volume of displaced liquid as the metal sample is immersed in the liquid and had computed the density using the formula: ϱL = WaWL / gV, and the percentage error after. They had been successful to support the theory of Archimedes and had came up with percentage error ranging from 5.76% to 9.91%.

Introduction:
Tradition tells us that the king was suspicious about the purity of the gold in his crown and asked Archimedes to find a way to determine if it was the real thing. Solving the problem seemed to be impossible because in those days (3rd century B.C.) nothing was known about chemical analysis. One day Archimedes was thinking about the problem while taking a bath. As he lay floating in the bathtub he thought about his "weightless" body. Suddenly he realized that all bodies "lose" a little weight when placed in water, and the...

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Archimedes’ & Pascal’s Principle
Purpose
In this lab, we will prove Archimedes’ Principle by finding the density of a Metal Cylinder, a cork, and an unknown fluid by using Archimedes’ Principle. We will also use the PASCO Pascal’s Principle Lab Setup to investigate the use of fluid pressure as a hydraulic system to do work and we will find its mechanical advantage.
Procedure
For the first part of the lab we will be verifying case 3 as explained by professor. We will measure the mass of the metal cylinder using the digital balance. After measuring the mass we also gather the diameter and height using the vernier caliper to calculate its volume. Using the mass and volume, we calculated its density.
Now a beaker was filled with water and the mass was measured. The cylinder we originally used will now be suspended in the beaker full of water and the change of mass will be recorded. The difference between these gives the Buoyant Mass of the cylinder. Using formulas provided the actual density of object was calculated as well as the apparent mass in water. Next we verified the situation in case 1. The big and small diameters of the cork were measured and then the density was calculated. Same process again, the cork will be suspended in the beaker that was full of water and we measured of how of it went in the water. The percent error was...

...Archimedes’ Principle
Abstract
The purpose of this experiment was to investigate the Archimedes’ Principle for objects of different densities and use the principle to determine the density of a golf ball. The weight of rubber stopper and the wood cube were measured in the air by using the force sensor. When the objects were submerged in the water, the apparent weight of the objects was measure with the force sensor and the volume of the displaced water were measure with a graduated cylinder. These same procedure was used to obtain weight and apparent weight of the golf ball. The weight of the displaced water when the rubber stopper was submerged was 1.94 N. Buoyant force obtained was 1.96 N and 2.14 N with a percent discrepancy of 0.97% and 9.30% respectively. The weight of the displaced water by the object was 1.14 N. The buoyant force was 1.14 N and 1.24 N with a percent discrepancy of 0.0% and 8.39%, respectively. The density of the golf ball was 1201.50 kg/m3. The theoretical values of the golf ball was 1130 kg/m3. The percent discrepancy was 6.19%. The percent discrepancy between the predicted mass and the experimental mass of the beaker, water, and golf ball was 0.056% which indicates an accurate prediction. The objective of the experiment was successfully met, investigators were able to confirm that the object is buoyed up by a force equal to the weight of...

...Title:
Archimedesprinciple
Objective:
To use ArchimedesPrinciple to determine the density of an object more dense than water.
Introduction:
Archimedes' principle is a law of physics stating that the upward force (buoyancy) exerted on a body immersed in a fluid is equal to the weight of the amount of fluid the body displaces. In other words, an immersed object is buoyed up by a force equal to the weight of the fluid it actually displaces. Hence, the buoyant force on a submerged object is the same with the weight of the fluid displaced. The weight of the displaced fluid is directly proportional to the volume of the displaced fluid (if the surrounding fluid is of uniform density). In simple terms, the principle states that the buoyant force on an object is going to be equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational constant, g. Thus, among completely submerged objects with equal masses, objects with greater volume have greater buoyancy. In this experiment, to calculate the density, we can use two methods:direct and indirect measurement. Direct measurement is used to calculate the mass and volume of object eg. magnet bar, pendulum bob and marble by using vernier calipers. By finding the density, we could determine the specific gravity of the object(the ratio of its...

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LABORATORY REPORT SUBMISSION
Experiment Title
:
ArchimedesPrinciple
Due Date
:
13 Nov 2014
Lab session
:
Group C
Group
:
03
STUDENTS DECLARATION OF WORK
We declare that the work submitted is our own. We confirm that we have read and understood the University regulations with regard to Plagiarism, Collusion and Cheating in this work will be penalized.
No.
Student ID
Group Members
Signature
1
1001336124
Rafat Saifullah Joy
2
1001025540
Liew Jian Huei
3
1001233272
Mustafa Maan
4
1001232603
Al faqeeh Ali
5
1001438732
Wah Jia Kai
6
1001437466
Cheng Wy - Liang
LECTURER’S ASSESSMENT CRITERIA
Criteria
Wtg.
Mark
Title, Objectives & Introduction
4
Materials and Methods
2
Results
3
Discussion & Conclusion
5
References
1
TOTAL:
15
Title: ArchimedesPrinciple
Objective:
To determine the density of an object more dense than the water by using ArchimedesPrinciple.
Introduction:
Archimedes’ principle states that for anybody partially or completely submerged in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the body. The weight of an object acts downward, and the buoyant force provided by the displaced fluid acts upward. The fluid displaced has a weight W = mg. The mass can then be expressed in terms of the density and its volume, m = pV where density of...

...Contents
Figures
Abstract
An experiment was designed and conducted to confirm Archimedes’ theory which states that an object will float in water providing its mass is equal to or less than the volume of water it displaces. The second objective of the experiment was to produce a value for water density.
It was expected that when additional mass was added to a floating vessel, it would displace more fluid and the increasing submerged volume of water could be measured, and a value for water density could be calculated using the equation .
The density of pure water was assumed to measure 1000 kg/m³ at 4°C however it was also assumed that the tap water used in the experiment would produce slightly different results.
The experiment was conducted using everyday household objects. Error was calculated for all values necessary to calculate the density of fresh water.
A final value for the density of the water used was calculated as 1003.86±264.43kg/m³. Although the value of density is similar to the assumed value for freshwater, the margin for error is large and contributory factors for this are discussed.
Introduction
Archimedes was a Greek physicist and mathematician who lived between 287BC and 212BC. He is accredited with advances in physics, engineering and mechanics and some of his theories are still in use today.
One of his theories, commonly referred to as the...

...Archimedes' principle indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics. Archimedes of Syracuse[1] formulated this principle, which bears his name.
Practically seen, the Archimedesprinciple allows us to measure the volume of our container, by measuring the volume of the liquid it displaces after the submerging and b) to calculate the buoyancy of an object immersed into a liquid.
We may observe for any immersed object that the volume of the submerged portion equals the volume of fluid it displaces. E.g., by submerging in water half of a sealed 1-liter container, we displace a half-liter volume of fluid, regardless of the container's contents. If we fully submerge the same container, we then displace one liter of liquid, that equals exactly to the volume of the 1-liter container.
If we just take an empty 1-litre plastic bottle in the air and release the bottle, it will fall down due to the gravitational force of Earth acting on our bottle. If we put this bottle under water, there will be still the same gravitational force acting on this bottle. At the same time if we release the bottle it will be pushed upwards towards the surface of the water. This extra...

...Applications of Archimedes' Principle
1. Submarine:
A submarine has a large ballast tank, which is used to control its position and depth from the surface of the sea.
A submarine submerges by letting water into the ballast tank so that its weight becomes greater than the buoyant force (and vice versa). It floats by reducing water in the ballast tank.-thus its weight is less than the buoyant force.
2. Hot-air balloon
The atmosphere is filled with air that exerts buoyant force on any object.
A hot air balloon rises and floats due to the buoyant force (when the surrounding air is greater than its weight). It descends when the balloon weight is more than the buoyant force. It becomes stationary when the weight = buoyant force.
The weight of the Hot-air balloon can be controlled by varying the quantity of hot air in the balloon.
3. Hydrometer
A hydrometer is an instrument to measure the relative density of liquids.
It consists of a tube with a bulb at one end. Lead shots are placed in the bulb to weigh it down and enable the hydrometer to float vertically in the liquid.
In a liquid of lesser density, a greater volume of liquid must be displaced for the buoyant force to equal to the weight of the hydrometer so it sinks lower.
Hydrometer floats higher in a liquid of higher density.
Density is measured in the unit of g cm-3.
4. SHIP
A ship floats on the surface of the sea because the volume of water displaced by...

...Physics 141 Archimedes --1
ARCHIMEDES’ PRINCIPLE AND SPECIFIC DENSITY
GOAL: To investigate buoyant force and Archimedes’ principle. To measure the specific density of several materials. INTRODUCTION: Try pushing down on a basketball in water and you feel the buoyant force that makes the ball float. As more of the ball is pushed beneath the water, the upward force becomes greater. One could make a first guess (Hypothesis #1) that the buoyant force increases with the submerged volume of the object. A more mathematical guess (Hypothesis #2) might be that the upward or buoyant force, B, is proportional to the submerged volume, Vsub, of the object. feathers, is in fact a statement that the density of lead is greater than the density of feathers. Recall for a homogeneous object with a volume, V, and a density, D, has a mass, m:
(4)
Thus the statement that lead is heavier than feathers, is correct if equal volumes of the two materials are compared. For many practical applications, it is important to be able to compare densities of various materials. One could compile a list that compares the density of everything to density of everything else, but it is easier to compare the densities of everything to just one substance, water. Water is chosen because it is very readily available and is frequently used in the measurement of density. One defines for a material with a density, Dk, a specific density, sk...