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Classical PhysicsModule 1: UNIT SYSTEMSVincent Robin B. delos Santos / Group 1 / June 01, 2015Introduce yourselfWhat is your full name.What is your nickname.What is your age (optional).What undergraduate course/s have you finished and where?What graduate course/s have you finished and where?What is your favorite food?Contact numberIntroduce yourselfState your full name.State your nickname.State your age (optional).State what is your favorite food?TERMINAL OBJECTIVEGiven appropriate conversion tables, the power plant operator is expected to be able to convert between English and SI system units of measurement.ENABLING OBJECTIVESDefine the three fundamental dimensions: length, mass, and time.List standard units of the fundamental dimensions for each of the following systems:International System of Units (S.I.)English SystemDifferentiate between fundamental and derived measurements.ENABLING OBJECTIVESGiven appropriate conversion tables, convert between English and SI units of length.Given appropriate conversion tables, convert between English and SI units of mass.ENABLING OBJECTIVESConvert time measurements between the following:YearsWeeksDaysHoursMinutesSecondsINTRODUCTIONPHYSICSA science based upon exact measurement of physical quantities that are dependent upon three fundamental dimensions.The three fundamental dimensions are mass, length, and time. Measurement of all physical quantities depend on these three fundamental dimensions.FUNDAMENTAL DIMENSIONSMASSAmount of material present in an object.Describes how much material makes up an object.MASS is not the same as WEIGHT.WEIGHT is a derived unit (not a fundamental unit); it describes the force of gravity on the mass of an object.FUNDAMENTAL DIMENSIONSLENGTHDistance between two points.Describes the size of a physical object or system.When measuring an object, say a pipe, the two points are the ends of the pipe; the length is the distance between these points.FUNDAMENTAL DIMENSIONSTIMEDuration between two instants.Time may be expressed in units of seconds/minutes/hours.UNITSA number alone is insufficient to describe a physical quantity.By adding units to a number, the physical quantity becomes definite and clear.Unit defines the magnitude of a measurement.Different units can be used to describe a certain physical quantityUNITSThe mass of objects may be expressed in units of kilograms/pounds/tonnes.The length of objects may be expressed in units of meters/feet/inches/furlongs/fathoms.Time may be expressed in units of seconds/minutes/hours/days/years.

UNIT SYSTEMSTWO UNIT SYSTEMS:* ENGLISH UNITS* INTERNATIONAL SYSTEM OF UNITS (S.I.)

UNIT SYSTEMSENGLISH SYSTEM - Currently being used in the United States- Foot-Pound-Second (F-P-S) system is being used

UNIT SYSTEMSS.I. SYSTEM - Made up of two related systems:1) Meter-Kilogram-Second (M-K-S) system* Used primarily in the fields of physics and chemistry2) Centimeter-Gram-Second (CGS) system* Used in the field of chemistry

- These are decimal-based systems- Prefixes are used to denote powers of ten

UNIT SYSTEMSS.I. SYSTEM 1) Meter-Kilogram-Second (M-K-S) system

UNIT SYSTEMSS.I. SYSTEM 2) Centimeter-Gram-Second (CGS) system

UNIT SYSTEMSS.I. SYSTEM

UNIT SYSTEMSS.I. SYSTEM

UNIT SYSTEMS* Physical quantities of familiar objects

UNIT SYSTEMS* Physical quantities of familiar objects

UNIT SYSTEMS* Physical quantities of familiar objects

DERIVED MEASUREMENTSDerived measurements- Combination of fundamental dimensions or measurements.- Combination of fundamental measurements can be of the same or of different units.

DERIVED MEASUREMENTSAREAProduct of two lengths (e.g. length x width for a rectangle)Has a unit of length squared such as square inches or square metersSample: 1 m x 1 m = 1 m24 in x 2 in = 8 in2

DERIVED MEASUREMENTSVOLUMEProduct of three lengths (e.g. length x width depth for a rectangular solid)Has a unit of length cubed such as cubic inches or cubic metersMKS/CGS specific unit for volume is liters (l)One liter is equal to 1000 cubic centimeters Sample: 2 in x 3 in x 5 in = 30 in3

DERIVED MEASUREMENTSDENSITYA measure of the mass of an object per unit volumeIt has units of mass divided by length cubed such as kilograms per cubic meter (kg/m3) or pounds per cubic foot (lb/ft3)Sample:15 lbs/5 ft3 = 3 lbs/ft3

DERIVED MEASUREMENTSVELOCITYChange in length per unit time.It has units such as kilometer per hour (km/h or kph) or feet per second (ft/s or fps).

DERIVED MEASUREMENTSACCELERATIONMeasure of the change in velocity or velocity per unit timeIt has units such as centimeters per second squared (cm/s2) or feet per second squared (ft/s2)

SUMMARYFundamental Measurements consist ofLength distance between two pointsMass amount of material in an objectTime duration between two instantsThe English Standard of units is based on the F-P-S systemThe SI system of measurement is made up of two related systems M-K-S and C-G-SDerived units are made up of a combination of units to describe various physical quantities.Area, Volume, Density, Velocity, Acceleration

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