Chapter 1 Introduction In 1971. the 14 general conference on Weights and Measures, The sI (International System)was adopted It is based on meter, second and kilogram It is also called Metric System(公制) or mKs system Many si(system International) derived units are defined in terms of these base units such as. I watt=1 W=1 kg. m2/S3 The second metric system is CGs(P7), in which the centimeter, gram, and second are the standard units of length, mass and time
Chapter 1 Introduction In 1971, the 14th General Conference on Weights and Measures, The SI (International System) was adopted. It is based on meter, second and kilogram. It is also called Metric System (公制） or MKS system. Many SI (System International) derived units are defined in terms of these base units, such as: 1 watt = 1 W = 1 kg ·m2 / s3 The second metric system is CGS(P7), in which the centimeter, gram, and second are the standard units of length, mass and time
Chapter 1 Introduction Shorthand and some commonly used units (P7) exa E1018 deci 10-1 peta P 1015 centi C 10-2 tera T 1012 10-3 giga G 109 Micro 10-6 Mega M 106 nano n 10 kilo K 103 pico p 10-12 Hecto h 102 femto f 10-15 deka da 10 atto a 10-18
Chapter 1 Introduction exa E 1018 peta P 1015 tera T 1012 giga G 109 Mega M 106 kilo k 103 Hecto h 102 deka da 101 deci d 10-1 centi c 10-2 milli m 10-3 Micro 10-6 nano n 10-9 pico p 10-12 femto f 10-15 atto a 10-18 Shorthand and some commonly used units (P7)