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This Concept Map, created with IHMC CmapTools, has information related to: Ng Yi Song 3G 20 Physics, Physical Quantities Base quantites: egs are Time, Examples are : micro, μ, Physical Quantities has two different kinds scalar, Examples are : milli, m, Physical Quantities Base quantites: egs are Length, Metre rule/ Vernier calipers/ Micrometer screw gauge/measuring tape errors to look out for Zero error/ negative/ postive parallax error, Stop-watch/pendulum/ticker tape timer/stop clock calculate the time taken to complete a number of oscillations/known as period, Physical Quantities has two different kinds vector, kilo,K <math xmlns="http://www.w3.org/1998/Math/MathML"> <mrow> <mtext> the number x </mtext> <mmultiscripts> <mtext> 10 </mtext> <none/> <mtext> 3 </mtext> </mmultiscripts> </mrow> </math>, Seconds/s can be calculated using Stop-watch/pendulum/ticker tape timer/stop clock, Examples are : kilo,K, Physical Quantities contain prefixes Examples are :, micro, μ <math xmlns="http://www.w3.org/1998/Math/MathML"> <mrow> <mtext> the number x </mtext> <mmultiscripts> <mtext> 10 </mtext> <none/> <mtext> -6 </mtext> </mmultiscripts> </mrow> </math>, Examples are : Mega,M, Mass SI unit is known as grams/g, Length SI Unit is known as Metre/M, Length Can be measured using Metre rule/ Vernier calipers/ Micrometer screw gauge/measuring tape, Physical Quantities also has derived quantities volume, cm cube, vector difference is vector force has a direction while scalar does not, milli, m <math xmlns="http://www.w3.org/1998/Math/MathML"> <mrow> <mtext> x </mtext> <mmultiscripts> <mtext> 10 </mtext> <none/> <mtext> -3 </mtext> </mmultiscripts> </mrow> </math>