Physics Measurement of Length Essay Sample free essay sample

Physicss is the scientific survey of affair and energy and how they interact with each other. Physicss utilizes the scientific expression to prove hypothesis and calculate affair such as denseness. Tools were created to mensurate stuff in a research lab and have been perfected to cut down mistake. In this experiment measuring of length. mass. volume and denseness will be obtained through instruments of mensurating and computations. The objects being measured will be two cylinders. one brass the other Fe and a glass ball. There will be two sets of table necessitating informations obtained from the objects including tallness. diameter. volume. mass and denseness. Objective In this laboratory experiment. the undermentioned aims will be achieved: ( I ) Determination of diameters and lengths of the two metal cylinders and the Cu wire ( two ) Determination of mass of same ( three ) Calculation of densenesss of the cylinders and comparing with the acceptable values. Materials used Equiptment 1. Triple- beam balance2. Vernier Caliper3. Micrometer4. Electronic balance ( to mensurate mass of Cu wire )5. A swayer ( inches and centimetres ) 6. Graduated Cylinder7. A axial rotation of Cu wire. 8. Wire Stonecutter9. Irregular object ( lead. Zn. etc )10. Three cylindrically molded metals ( brass. Fe. aluminium. steel. Sn. Zn. etc ) Functions of the equiptmentIn order to obtain precise measurings. complex equipments should be used. Take safeguard in multiple tests to diminish mistakes. One of the instruments that will be used is the vernier calliper. a Vernier helps in reading millimetre of the fractional portion of the graduated table. This is designed to take external additive dimensions. by contact between two opposing sides. With less truth. it besides measure internal dimensions. deepnesss. bumps. among other. The following instrument being used is the micron calliper is used for precise measurings of little distance. This device is enclosed between two jaws. one fixed and t he other movable by agencies of a all right prison guard. When the jaws are merely touching the object. the distance between the jaws can be read to an truth of 10-4 ( one ten-thousandth ) or 10-6 ( one millionth ) . The last measurement tool will be the a ternary beam balance. it has three beams each provided with a skiding weights. These weights have different sizes. the largest one slides along 100 g. the following on a graduated table with a notch every 10g. and the smallest on a graduated table with 1-g chief divisions and 0. 1-g subdivisions. Procedure1. Measure the length of the piece of Cooper wire with the metric swayer. Estimate to the nearest ten percent of a millimetre. Make four independent measurings utilizing different portion of the swayer and record all the reading s. 2. Measure the length of the wire with the English swayer. Estimate both terminal consequences to the nearest ten percent of the smallest scale division. Make four independent measurings. utilize different portion of swayer and record all readings. 3. Use the Vernier Caliper to enter the zero reading to 0. 01 centimeter. Make four independent readings by shutting and opening each scene and enter your consequences. 4. Using the Vernier Caliper step the length of the diameter of each cylinder. This is made by shuting the jaws of the Caliper on the length or diameter of the cylinder being measured and reading the place where the zero line of the Vernier falls on the chief graduated table. Record the readings in centimetres and read to 0. 01 centimete r. Make four independent measurings by opening and shuting the jaws in between each one. Measure the length of each in bend one time so mensurating the length of each in bend one time and reiterate the complete sequence four times. 5. Use a clean micron calliper to find the zero reading. The prison guard will be brought near to reach with the anvil by turning the thimble straight. Turn the rachet easy until it clicks several times. If the rachet is non present simply let the prison guard approach the anvil really easy and halt every bit shortly as both surfaces touch. Record the value of the reading in centimetres and read to 0. 0001 centimeter. gauging to one ten percent of the smallest scale division. Make four independent findings of zero readings. 6. Following step the diameter of the Cooper wire with the micron calliper. The measuring is made by puting the wire between the screw terminal and the anvil. Use the ractchet and if there is none. attention should be taken. Record the reading in centimetres and read to 0. 0001 centimeter gauging to one ten percent of the s mallest scale division. Make six independent measurings of the diameter of the wire. 7. Determine the mass of each cylinder of the solid and of the wire utilizing the ternary beam balance. Datas Length and Diameter of Metal Cylinders with Vernier CaliperOBJECTS| HEIGHT| DIAMETER| VOLUME| MASS| DENSITY|Brass cylinder| 5. 0 cm| 12. 5cm| 6. 13 centimeter 3| 53. 5 g| 8. 73 g/cm| Silver cylinder| 4. 9 centimeter | 12. 5 cm| 6. 01 cm3| 40. 9 g| 6. 80 g/cm| Glass ball| . 9 cm| 22mm| 5. 57 cm3 | 12g| 2. 15g/cm3| Diameter OF COPPER WIRE ( HAIR STRAND )AVERAGE| D1| D2| D3| D4| D5| D6|. 043| 0. 05 mm| 0. 05mm| 0. 03mm| 0. 04mm| 0. 04mm| 0. 05mm| FormulasDensity=mass/volumeerror= [ E measure-Eth/Eth ] *100 %SD= valency = 5. 56*10^-5( Hair diameter ) Da+S+D=DA* ( 1+percent error1+10 % )Variance= sum/6 AnalysisAfter finishing all the tests and the computations clearly the two cylinders diameter was the same and the tallness and volume were somewhat different. When ciphering the denseness and mass were wholly different this could be because the stuff that each cylinder was made with one being brass the other being Ag. The glass ball could non compare to the cylinders but after obtaining the computations can province the stuff had a drama. The diameters of wire in this instance hair strands were much lower than the cylinder and mass along with stuff played a immense portion. Overall hypothesis was proven right brass has more denseness so silver.