Finally, we analyze the errors in both parts of the lab by propagation by substitution and compare the theoretical-experimental values using errors. III. Results: The theoretical buoyant forces for the sphere, the small cylinder, the block, and the big cylinder are 0.297N, 0.131N, 0.369N, and
Experiment 1: Pressure, Temperature, and Velocity Measurement Objective: The objective of this experiment is to determine the pressure and density of laboratory air, calibrate a pressure transducer and scannivalve, then determine the test section speed as a function of fan speed using three methods of velocity measurement. Equipment: Absolute pressure transducer, digital thermometer, pressure transducer (voltmeter), micromanometer, scannivalve, Pitot tube, low-speed wind tunnel. Part 1: Measurement of Atmospheric Pressure and Density 1. Read the barometer and wind-tunnel thermocouple. 2.
Determination of Unknown Block Material and Uncertainty Analysis Xuan Wang TA: Saurabh Chawdhary ME4031W Lab Section 014 4:40PM Wednesday 2/10/2013 Abstract People discovered many methods to determine the properties of unknown materials (harness, density, or elastic modulus etc.). In this lab, the task is to find the density of an unknown block. If the dimensions and mass of unknown block can be obtained, the density can be calculated by block mass over block volume. After comparing the result density value to a reference chart, the specific material category can be determined. Dimensions can be measured by using a caliper and a micrometer and mass can be determined by putting the block onto an electronic balance.
In the other, aluminum leftovers, the activity series was used to understand how and why the reaction took place and stoichiometry was used to predict the amount of aluminum that should have reacted in the following equation: 3CuCl2 * 2H2O (aq) + 2Al (s) 2AlCl3 (aq) + 3Cu (s) + 6H2O Stoichiometry’s importance in the laboratory is well defined in the results of the previously mentioned experiments. Materials:
AP Physics C Lab Report i. Purpose: To investigate the relationship in Newton’s Second Law ii. Materials: Pasco track and cart, endstop, pulley, string, washers, lab pro with motion detector, logger pro iii. Procedure: 1. Assemble the materials as shown in the diagram to the left.
Michael Rarick ET1220 Prof. Karam Labs 1 – 4 Lab 1 – Laboratory Instrument Familiarization, page 2 Lab 2 – Constructing a Logic Probe, page 3 Lab 3 – Number Systems, page 4 Lab 4 – Logic Gates, page 5 Lab 1 – Laboratory Instrument Familiarization Materials: - One 330 ohm resistor one 1k ohm resistor and one 2.7k resistor - One LED - One 555 timer IC - Two capacitors one a high value one low (.1 micro Farad and 100 micro Farad) Purpose: The purpose of the experiment was first and foremost to review the equipment and to make sure that we could wire the circuit according to the schematic and to gain experience doing so. This also involved gaining familiarity with how ICs must be powered and grounded
Name General Chemistry 1411 Laboratory Techniques and Measurements May 16, 2013 Professor Frank Pishva Objective/Purpose: The objective of this lab, laboratory techniques and measurements is for us the student to learn about the unit systems and how it relates to measurements in mass, length, temperature, and volume. This lab purpose is to also help us learn how to combine units to determine density, conversions, and trying to become familiar with common laboratory equipment and techniques. Hypothesis/Theory: This lab is pretty self-explanatory. The only theory that could possibly occur is on data table 9, understanding the dilution process. As the dissolved sugar volume transfer increased, the mass will stay approximately the same due to the density of the water decreasing as the sugar water become less diluted.
Vibrations Lab Experiment This experiment was to record the damping effect of air and oil on a spring with a given mass connected to it, the results are recorded on a computer that takes each peak to peak and how long it takes for the dampers to decay its oscillation motion. Apparatus Universal Vibration Apparatus (tecquipment Ltd, Nottingham, UK) Vibration system including rectangular beam and helical spring Motor with eccentric weights to force vibration PC with data acquisition system Group members: Daniel Hutchings, Joel Harman, Michael Greenway and Jamie Jones. Given: * Mass of system (m) = 3.5kg * Mass of weight (w) = 7.5kg * Length L0 = 0.160m * Length L1 = 0.376m * Length L2 = 0.658m * Length L3 = 0.769m Distance between pivot and LVDT = 66mm Calibration of LDVT: 1.25mm = 1V At the position of the spring: (658/66) x 1.25 = 12.5mm/V Identifying the stiffness of the spring used in the experiment/damping properties: Mass of weight (w) in newtons = 7.5 x 9.81 = 73.6N Stiffness: K = L3L2x(w∆x) = 0.7690.658x73.621.13X10-3 = 4070NM-1 Natural angular Velocity: Ѡn = 40703.5 = 34.1s-1 Natural frequency: Fn= 34.1πx2 = 5.4 Hz The inverse of 5.4 Hz will give cycle per second (Tn =1Fn=15.4): 5.4-1=0.18s-1 Air Mean Displacement: 0.15276 mm Measured Cycles: 30 First peak (times t): (0.106sec, 21.80mm) Second peak (time t+30T): (4.900sec, 14.61mm) Oil Air Mean Displacement: 0.01493 mm Measured Cycles: 30 First peak (times t): (0.196sec, 20.64mm) Second peak (time t+30T): (5.162sec, 2.75mm) T = t1-t2N = 0.106-4.90030 = 0.1598 secs | N | X(x(t)) |
* Smart pulley, used at the end of the track as a pulley system between the bigger and smaller masses. Principles The principles used in the experiment would be Newton’s Second Law, which says that the behavior of objects under a net force is Fnet=ma, and net force is the sum of all forces acting on an object, Fnet=F. The experiment also uses principles of Tension “T” and the force of gravity “Fg”, which is equal to 9.8 m/s². Procedure Part A * Take the mass of the cart: 253.0 g * Add a 10g weight to the 1.0 g paper clip, making smaller mass 11.0g * Record the slope of the line of run #1 after releasing the cart to the end of the track. (y = 0.355x + 0.119) * Repeat with another 10g weight, making smaller mass 21.0g * Record the slope of the line after run #2 (y = 0.672x + 0.155) * Repeat with another 10g weight, making smaller mass 31.0g * Record the slope of the line after run #3 (y = 0.966x + 0.268) * Repeat with another 10g weight, making smaller mass 41.0g * Record the slope of the line after run #4 (y = 1.27x + 0.135) * Repeat with another 10g weight, making smaller mass 51.0g * Record the slope of the line after run #5 (y = 1.46x + 0.294) * Calculate the acceleration for each run using a =
Code Followed The complete laboratory tests have been performed as per I.S codes. For different tests different I.S Codes have been used as shown in Table 3.2: Table 3.2: I.S Codes followed for Testing S.NO TEST I.S CODE 1 Specific Gravity Test I.S: 2720 (Part 3- Sec. 2) : 1980 2 Grain Size Analysis I.S:2720(Part