Calculations are significant only to the same number of decimal places as measurements, so round off calculations to the nearest tenth unit. Convert each cm measurement to both meters m and kilometers km. To measure something you need a standard system of units and a device to measure it. The simplest way to measure length is to use an ordinary meter stick. These are used for measurement of pressure and vacuum and are suitable for all clean and nonclogging liquid and gaseous media. Fix inifile and logfile for nonactiveperls show less show more. However the lack of significant figures in the weight measurement made the overall calculation exactly the value of the given density. Metric measurement stations stations are setup with the number of students in mind. To learn to use a variety of measuring instruments and to practice gathering and manipulating data. You will learn to make measurements using the metric system.
To measure something, you need a standard system of units and a measuring device. Measurement lab mlab is an open, distributed server platform for researchers to deploy active internet measurement tools. C and 2 each basic unit can have prefixes that are based on powers of 10 making conversions much easier. You will notice that most of the vernierscale tick marks do not align with the centimeterscale tick marks below them. The purpose of this lab was to apply the scientific method and to use the metric system. All original material on measurement lab is licensed under a creative commons attributionnoncommercialshare alike 4. The metric system is based on standard units of length, mass and volume. One end of the tube is closed, the other open and connected to the measurement region. Metric measurement lab notes leave this sheet on lab there are 8 stations set up in the classroom. This is a wide band amplifier used to amplify signal in the vertical section of the signal. A current source inverter accepts input from a power supply that acts as a current source rather than a voltage source.
Using the graduations on the beaker, measure the volume of liquid in the beaker. Equipment needed qty equipment needed qty measurement equipment tray 1 measurement lab container 1 balance 1 table clamp with rod 1 pendulum clamp 1 meter stick 1 linear graph paper on. Work with your partner, but record results in your individual laboratory. The first part of the lab will give you a chance to measure length, volume and mass using different types of scientific instruments, expressing each measurement to the appropriate number of significant figures.
Lab 1 the scientific method and metric system overview in this laboratory you will first watch a brief video on the importance of laboratory safety, organization and cleanliness. Dok temp measurement dok questions when finished with both sides turn in assignment. Metrology lab 15mel47b iv semester 1 part a mechanical measurements lab introduction measurement. Learn vocabulary, terms, and more with flashcards, games, and other study tools. M lab is a collaborative effort led by researchers in partnership with companies and other institutions. Tiphannee evans record all measurements and do the calculations on this sheet of paper to be handed in to instructor. Linear measure use the metric stick to measure the items listed below. Using a triple beam balance, tutorial watch and listen vbaf6hovk6ji triple beam balance reading, practice. Record all of these measurements on your data table. Mlab is a collaborative effort led by researchers in partnership with companies and other llaborative effort led by researchers in partnership with companies and other institutions. Photometric measurement, or photometry, is a technique that can be used to measure the concentration of organic and inorganic compounds in solution by determining the absorbance of specific wavelengths of light. The electricalresistance strain gage is the most widely used device for strain measurement. The world of science uses the metric system, the newest version of which is.
You will be writing a formal lab report for this lab, using the format explained on a prior content page in this module. Measurement is the act or the result of a quantitative comparison between a predetermined standard and an unknown magnitude. In roman times, for example, a foot in england was 29. About the book engineering metrology and measurements is a core subject for mechanical, production, and allied disciplines in all the major universities in india.
The next two digits, hundredths and thousandths of a centimeter, are determined from the centimeter vernier scale. Unfortunately, these units were somewhat arbitrary. To introduce the concepts of horizontal distance measuring instruments and the associated errors that may have committed during measurements. Measurement lab now that you have perfected measuring and converting units using dimensional analysis, its time to try this on your own. Circle the unit you used to directly measure with for each item.
It is reinforcement for a lesson you already taught about reading topography or contour maps. Measurement lab practical making careful lab measurements is an essential skill for all chemists. Measurement errors adapted from holtzmans intro lab for astr110 purpose. We are an open source project with contributors from civil society organizations, educational institutions, and private sector companies, and are a fiscally. For example, a metric ruler may measure length to the nearest tenth of a. Make all of the initial measurements in centimeters cm. Bourdon gauge consists of a hollow metal tube with an oval cross section, bent in the shape of a hook.
The metric system of measurement has been adopted by 99% of the countries in the world and all scientists for two primary reasons. Using the metric ruler, estimate the thicknesses of 25, 50, 75, 100, and 200 pages in the lab notebook and your textbook and determine the average thickness of a single page. Metric measurement lab henry county school district. At each station, the group will perform a measurement that is commonly used in a chemistry lab. Principles of measuring voltage, current and resistance 5. To study about torque and speed and accelaration measurement. The overall goal is to provide students with a general background in taking measurements for scientific and engineering applications. Above each column write the name of the unit that is abbreviated below it. The equipment and supplies for the station are already at the station or the task card directs the students to gather the needed materials. To learn how to use the following measuring devices.
Lab activity measurement, uncertainty, and significant figures laboratory measurements set up a table in your laboratory notebook using the figure below as and example. Metric measurement lab students name january 27, 2009 2 nd semester 1 st block mrs. It is designed to help you learn a standard method for handling data, when measuring andor when calculating. There is a task card with instructions for each station. Metric measurement lab notes leave this sheet on lab. Essay on laboratory techniques and measurements lab 1 labpaq 1021 words 5 pages laboratory techniques and measurements lab 1 the purpose of this lab was for the student to get involved with his or hers new lab kit as well as being able to know, identify and use each other tools provided in the kit. From aviation to automotive light testing, elites allnew photometric testing lab is fully equipped with stateoftheart measurement equipment to ensure accurate, repeatable results and efficient operation. In this lab, labview is used as an instructors aid to develop lab exercises and lab setups that introduce students to testing, measurement, and data acquisition. Its a doittillyougetitright activity, not a handinandhope.
Essay on laboratory techniques and measurements lab 1. Jan 27, 2009 metric measurement lab students name january 27, 2009 2 nd semester 1 st block mrs. Labs introduction to electronics, signals, and measurement. There are two different parts to this lab,taking measurements and performing calculations. You will then focus on principles relating to the scientific method and the presentation of experimental data after which you will perform an experiment. Use a graduated cylinder to measure the same liquid. Length meter mass gram volume liquid liter volume solid cm3 1 ml 1 cm3. The metric system is the standard system of measurement in the sciences, including biology, chemistry, and physics. It is used to generate sawtooth voltage which it is applied to. Measurement of angle using sine bar sine center tool makers microscope 5. The ruler is incremented in units of centimeters cm. Introduction to measurement units and measurement one of the most important steps in applying the scientific method is experiment.
To study about stress, strain and force measurements. Units of measurement and their standards, which is concerned with the establishment. Measurement lab mlab is the largest open internet measurement platform in the world, hosting internetscale measurement experiments and releasing all data into the public domain cc0. Occasionally we include temperature, electrical charge or light intensity. Measure the length of a table, the length of the room that table is in, and also the width of the room that the table is in. Learning about the lab tools the zip file contains. Record all measurements in this lab to the nearest tenth of a unit. Find materials for this course in the pages linked along the left. Metric measurement lab there are 7 stations set up in the classroom. Mlab papers, presentations, and regulator filings mlab. Typically we measure simple quantities of only three types. In the laboratory, our meter sticks are carefully calibrated in centimeters with a millimeter.
There are five stations and each group will have 5 minutes to complete each station. Integral to water quality analysis, photometry instruments go beyond simple testers by allowing users to develop a chemical profile of. This lab practical is designed to be a refresher on basic lab skills and then test your abilities to make specific solutions. Scientists can only expect to communicate effectively if they are using a common language. Use a large graduated cylinder to measure the capacity of the flask. Thus, in a broader sense metrology is not limited to length and angle measurement but also concerned with numerous problems theoretical as well as practical related with measurement such as. Calibration of strain gauge for temperature measurement. It is essential that the procedure and apparatus employed for obtaining the comparison must be provable. Using the metric ruler, estimate the thickness of 1 page of your lab notebook and record in table 2. Your task is to prepare 250 ml of a salt solution with a specific conductance of 1266 mhocm. Once the measurement is completed, each member of the group will record the results in the appropriate tablechart.
Calculate the uncertainties of all measuring devices you will be using. Home publications mlab publications papers, presentations, and regulator filings. The advantage of the metric system of measurement is twofold. While the actual language changes from country to country, the one thing that remains fairly constant is the language of the metric system. There is a task card at each station with instructions. Micrometers m are not marked on the ruler, but remember that m would fit in between each millimeter hashmark.
Experiment 1 the metric system, density and temperature. These measurements will encompass mastering the metric ruler, gram scale, and the graduated cylinder, and thermometer. Within some limits, a dc current source delivers a set current to a load without regard to the impedance of the load or the voltage required. We conducted this lab experiment by obtaining the following items from the teacher.
It is used to delay signal for sometime in the vertical section. Measurement virtual labs warren county public schools. Use everyday household items to complete the following measurements. The lab exercises require the students to write andor run simple labview. Study the basic functions of digital multimeter dmm 3. Learn to use all the measuring devices listed above.
Read chapter 6 in the elementary surveying, 11th ed. Elites powerful combination of emc, environmental, and photometric testing services help lighting manufacturers successfully validate their products from every aspect with a comprehensive testing procedure to measure the magnitude, color, quality and spatial distribution of light emitted from lamps, leds and luminaires. In the past, natural units of measurement, such as a foot, were commonly used. Papers, presentations, and other documents that describe the mlab platform, tests, and data, as well as research results obtained from the analysis of mlab data, are shown below.
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