IDENTIFYING THE PHYSICAL QUANTITIES
WORKSHEETIDENTIFYING THE PHYSICAL QUANTITIES================================================================Group Name:Student Name:Class:================================================================A. Standard Competence: 2. Applying the concept of physics quantities and measurementB. Basic Competence :1.1 Measure physical quantities (mass, length and time)C. Indicator :Analyze quantities and units in physicsAnalyze dimension of derived quantities Differenting base quantities and derived quantities in PhysicsApplies the quantities and units in physics calculatingD. Required Time Time that allocated for this activity is 2x45 minutesE. Short InformationQuantities are the characteristic of an object or event which measured or stated by number. Generally, quantities in Physics can be divided into two parts; those are base quantities and derived quantities. There are seven base quantities; those are length, mass, time, temperature, electric current, luminous intensity, and amount of substance amount. Derived quantities are quantities which derived from one or several base quantities. For examples area, volume, density, velocity, acceleration, force, etc. Each Physical quantities has unit, abbreviation, and dimension. To understand about physical quantities, read these following references of physics textbook.Budi Purwanto, (2009). Theory and Application of Physics: for Grade X of Senior High School and Islamic Senior High School. PT. Tiga Serangkai Pustaka Mandiri, Page (1-14)Fendi Purwoko, (2009). Physics: For Senior High School Year X. Yudhistira. Page (6-11)Sunardi, (2006). Fisika Bilingual: Untuk SMA/MA Kelas X Semester 1 dan 2. YRama Widya. Page (3-9) F. Work ProceduresUnderstand the standard competence and objectives of class discussion activity.Read and understand about physical quantities including: base quantities, derived quantities, unit, symbol, and dimension. Sit down and collaborate on your group. Discuss about task in this student worksheet on your group.Make your group report in class discussion and prepare the material to presentation activity. Make your report personally and collect in the next meeting. G. Task1. Complete these sentences.A physical quantity is a quantity that can be measured and consist of …………………………………………………………………………………………………..........The physical quantities can be classified into two types; the ………………………..and the ……………………..There are………….base quantities, those are…………………………………..........………………………………………………………………………………….........There are five examples of derived quantities, those are……………………….……………………………………………………………………………………………. Unit of base quantities from force are ……………………………………………….The physical there are many systems units, like the ………………………………...…………….., the………………………………………and the…………………….. ……………………..g. System of units which use at base quantities and derived quantities is……………… ……………..or…………………….(MKS)2. Explain the different between base quantities and derived quantities ?. ………………………………………………………………………………………......... ………………………………………………………………………………………......... ………………………………………………………………………………………........ ...……………………………………………………………………………………..........3. Complete this following table in SI unit for the quantities Base QuantitiesUnitAbbreviationDimensionLengthMassTimeelectrics currentTemperatureSubstance amountLight intensity 4. In this table is given five example of derived quantities. Complete the table Derived quantitiesFormulaUnitDimensionVolumeDensityVelocityPressureEnergy5. In this table is given different between of units systems. Complete the units used to the table Physical quantitiesMKSCGSFPSPanjang MassTime6. Convert every unit following into MKS system a. 16 cm2 = ……………………………. b. 8 cm3 = …………………………….. c. 0.8 gr/cm3 = …………………………….. d. 60 km/hour = ……………………………..7. Match the every statement on the left with answer on the rightaDerived quantity that has kg/m3 unit is ………………….impulsebOne example of base quantity is …………………………..weightcUnit of force is same with unit of ………………………….accelerationdDerived quantity that has dimension MLT-1 is ……………. densityeDerived quantity that has m/s2 unit is …………………….. temperature8. Complete this following table about the prefixes of SI units PrefixSymbolNumbersExampleexaEpetateragigamega106kilohektodekadesimiliMilligram (mg)mikronanopikofemtoatto ................
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