CHAPTER one - CHAPTER1 BasicConcepts Units Dimensions...

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CHAPTER 1 Basic Concepts Units Dimensions Conversion Ms. Norilhamiah Binti Yahya Lecturer Room Ext: 2046
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  Free Template from www.brainybe 2 Units • A measured or counted quantity has a  numerical value  and a  unit Example : 360 meter (m) 50 kilograms (kg) 0.065 seconds (s) 27 celcius (ºC) unit value
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  Free Template from www.brainybe 3 Units can be Added Subtracted Example 5m  – 3m (yes)             2.05kg +3.56kg (yes)             7hr – 2min (no) Multiplied Divided    Example :      4m x 3m = 12 m 2         Same unit Any unit km hr x hr km 35 5 7 =
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  Free Template from www.brainybe 4 COMPONENTS OF UNITS COMPONENTS OF UNITS BASE UNITS MULTIPLE UNITS DERIVED UNITS
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  Free Template from www.brainybe 5 DIMENSION SI UNITS LENGTH  Meter (m) TIME  Second (s) MASS  Kilogram (kg) ELECTRIC CURRENT Ampere (A) TEMPERATURE Kelvin (K) AMOUNT OF MATTER Mole (mol) ANGLE Radian (rad) Basic Units
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  Free Template from www.brainybe 6 Multiple Units Fractions of base unit    - Example :   years    days                       Hours                       minutes    Multiple Unit prefixes -Example : Mega ( x 10 6 ) Nano ( x 10 -9 ) Seconds
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  Free Template from www.brainybe 7 Derived Unit By multiplying base or multiple unit As defined equivalent of compound units Example : 1 Nm = 1 kg.m 2 /s 2
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  Free Template from www.brainybe 8 EXERCISE What is the derived unit for velocity in the SI System? The CGS System? The American Engineering System? (Velocity = Length/Time) SI Meter/second CGS Centimeter /second US common feet/second
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  Free Template from www.brainybe 9 Examples 1500 k g = ? Ibm 1500 kg x 1 Ibm = 3306 Ibm 0.453593 kg 275 Ibm = ? ton 275 Ibm x 5 x 10 -4 ton = 0.138 ton 1 Ibm Mass  1 kg  = 1000 g = 0.001 metric  tonne            = 2.20462 Ibm = 35.2739 oz  1 Ibm = 16 oz = 5 x 10-4 ton             = 453.593 g = 0.453593 kg 
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  Free Template from www.brainybe 10
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  Free Template from www.brainybe 11 Example : Significant digits
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  Free Template from www.brainybe 12 3 SYSTEMS OF UNITS
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CHAPTER one - CHAPTER1 BasicConcepts Units Dimensions...

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