The Digital Multimeter A Digital Multimeter (DMM) is simply an electronic tape measure for making electrical measurements. It may have any number of special features‚ but mainly a Multimeter measures volts‚ ohms‚ and amperes. * Invented in the early 1920s by British Post Office engineer‚ Donald Macadie * It can be used around the house to test flashlight batteries‚ sprinkler valves‚ cables‚ toys and house outlets. * It can Measure to a high degree of accuracy Caution: The Multimeter
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reported using metric system units of measurement. There are four basic metric measurement units: • Length = meter (m) • Volume = liter (l) • Mass (weight) = gram (g) • Temperature = ° Celsius (° C) All four metric system basic units can be converted into larger or smaller units simply by adding a prefix in front of the basic unit: Unit prefixes: • kilo (k) = Makes the basic unit 1000 times larger (103) • deci (d) = Makes the basic unit 10 time smaller (10-1 or 1/10)
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The metric units of measure and the customary units of measure are two systems of measurement used in the world today. The metric system is an alternative system of measurement used in most countries and is based on joining one of a series of prefixes with a base unit of measurement (ten). The customary system of measure is a system of measurement used primarily in the United States of America and measures in inches‚ feet‚ yards‚ et cetera. The first use of the metric system was in 1799‚ during the
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Lab:Measurement Error (Bounds) Purpose The purpose of this experiment was to understand and recognize that errors do occur when doing experiments and making measurements. With this lab we had to understand how to analyze the data using measurement bounds. Theory: In this experiment we were to find the density of the wood we are measuring by using the method of upper bound and lower bound. Density is a physical property of matter. Every element and compound has its very own unique density
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5. RESULTS&DISCUSSION A. Ruler Scale: | Accuracy | Precision | Metric unit side | 0.01 | 0.001 | Object | | Measure in | | | | Centimeter (cm) | Meter (m) | Inch(in) | Yard(yd) | Stirring rod: Length | 300.50cm | 3.005m | 12in | 0.33yd | Lab. Manual: Length | 271cm | 2.71m | 10.20in | 0.28yd | Lab. Manual: Width | 208cm | 2.08m | 8.60in | 0.24yd | B. Graduated Cylinder Volume reading when graduated cylinder is half filled with | (mL) | Potassium permanganate(KMnO4)
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walked into the store and asked yourself‚ why am I buying a gallon of milk instead of two liters of milk? Better yet‚ have you ever asked yourself why you’re buying two liters of pop instead of a gallon of 1[-; pop? As you can see the US standard units measuring system and the metric system disagree with one another in this instance. This isn’t the only situation either. They clash with one another in many other situations world wide. That is why America should join the rest of the world and switch
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ddddddddddddddddddddddddddddddddddddddn) - 1 micrometre - Yoctometre Units and symbols - Mineralogical Society of America www.minsocam.org/msa/ammin/units.html Remember to spell out the units in the text if not accompanied by a unit. Example: several ... mm = 10-3 m). μm = micrometer(s) (1 μm =10-6 m) NOT micron or μ. The Metric System and Measurement faculty.clintoncc.suny.edu/faculty/michael.../files/.../Metric_System.htm Unit‚ Length. kilometer (km)‚ 1‚000 m (1 X 103 m). meter (m)‚ 1 m. centimeter
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conduct of its affairs. Importance of Income Reporting The EMH and stock prices Economic Vs. Accounting Income Related sciences concerned with the activities of business firms use similar variables differences over the timing and measurement of income Relative importance of income statement (accounting) and balance sheet (economics) What is the Nature of Income? Three possibilities Psychic Satisfaction of human wants Real Increase in economic wealth Money Increases
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Measurement: Length‚ Mass‚ Volume‚ Density‚ and Time Peter Jeschofnig‚ Ph.D. Version 42-0267-00-02 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing
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quantities and derived quantities are * List base quantities and yheir units * List derived quantities and their units * Express quantities using prefixes * Express quantities using scientific notation * Express derived quantities as well as their units in terms of base quantities and base units * Solve problems involving conversion of units 1.3 Understanding scalar and vector quantities * Define scalar and vector
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