Metric System Applications PDF

‫بسم هللا الرحمن الرحيم‬ ‫‪Dr. Deia I. Moubarak‬‬  Metric System By Dr. Deia Ibrahim Moubarak Dr. Deia I. Moubarak Unit Application of Math and Science in Technology Title Unit Total Lec. Tut Lab/WS Practice Code Cre...

‫بسم هللا الرحمن الرحيم‬ ‫‪Dr. Deia I. Moubarak‬‬  Metric System By Dr. Deia Ibrahim Moubarak Dr. Deia I. Moubarak Unit Application of Math and Science in Technology Title Unit Total Lec. Tut Lab/WS Practice Code Credit 3 4 2 2 0 0 hours Dr. Deia I. Moubarak  Metric System What is Metric System? The metric system is a system of measuring things. It is used worldwide in calculations and research. Here are some examples of how we measure things using the metric system: The Physical Quantities *Quantitative versus qualitative Qualitative Observations: How do you measure artistic beauty? Dr. Deia I. Moubarak  Quantitative Observations What can be measured with the instruments ? Dr. Deia I. Moubarak The Physical Quantities Systems of units Dr. Deia I. Moubarak The international System of units (SI) Dr. Deia I. Moubarak Other Systems of Units Dr. Deia I. Moubarak Prefixes Dr. Deia I. Moubarak Conversion factors Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak  Measurement Accurate Measurement No measurement is perfectly accurate Some error is inevitable even with high precision instruments Two main types of errors – Random errors – Systematic errors Random errors occur in all measurements. Also contributed by background noise or mechanical vibrations in the laboratory. Called random errors because they are unpredictable Minimize such errors by averaging a large number of readings Dr. Deia I. Moubarak  Systematic errors are not random but constant Cause an experimenter to consistently They Due to the equipment being used – e.g. a ruler with zero error may be due to environmental factors – e.g. weather conditions on a particular day Dr. Deia I. Moubarak  Measurement of Length For shorter length, a meter rule or a shorter rule will be more accurate Vernier Calipers Allows measurements up to 0.01 cm Consists of a 9 mm long scale divided into 10 divisions Dr. Deia I. Moubarak Micrometer Screw Gauge Two scales: main scale and circular scale One complete turn moves the spindle by 0.50 mm. Each division on the circular scale = 0.01 mm Dr. Deia I. Moubarak Dimensions Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak  Vector and Scalar Quantities Dr. Deia I. Moubarak Examples of scalars and vectors Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Vector Addition Dr. Deia I. Moubarak Vector Subtraction Dr. Deia I. Moubarak Dr. Deia I. Moubarak Unit Vectors Dr. Deia I. Moubarak Vector Addition using Components Dr. Deia I. Moubarak Dr. Deia I. Moubarak Magnitude and direction of a Vecto Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Vectors in Three Dimensions Dr. Deia I. Moubarak How to calculate unit vector Dr. Deia I. Moubarak  Vector product The Scalar Product (dot product) Dr. Deia I. Moubarak The scalar product can be positive, negative, or zero, depending on the angle between A and B Dr. Deia I. Moubarak Calculating a Scalar Product Using Components Dr. Deia I. Moubarak More properties of dot product Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak  The Vector Product Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak Dr. Deia I. Moubarak ‫تم بحمد هللا‬ Thank you Dr. Deia I. Moubarak