units of measurement
PHY 1103
Physics I
RKMC - HCT
Learning Outcome 1:
Sub-outcome 1: Assign given basic units to their corresponding physical quantities.
All engineers must use the same language in their communications, and one of these universal communication tools is the units of measurements.
Physical quantities such as length, weight, time, speed, force, and mass are measured with standard units.
Therefore the magnitude if a physical quantity is given by a number and standard unit of measurement. Examples: 5 meters, 60 kilograms.
SI units are the international system of units (system international). The SI Base Units for the seven fundamental Quantities: Note that the above units are stated in MKS (meter-kilogram-second), another French standard unite of measurement is called the CGS ( centimeter-Gram-Second).
Sub-outcome 2: differentiate between the two metric systems of units, meter-kilogram-second, and centimeter-gram-second. Bothe MKS (meter-kilogram-second (SI Units) and CGS (centimeter-Gram-Second) are metric units, but the MKS units are more commonly used worldwide. The CGS and SI systems of units are built in an identical way. The two systems differ only in the scale of two out of the three base units (centimeter versus meter and gram versus kilogram, respectively), while the third unit (second as the unit of time) is the same in both systems. Sub-outcome 3: Derive units of speed, acceleration, force, density, area, volume from basic units. The Derived Units: From the base SI units, many units for other physical quantities were derived.
A derived unit is a unit that is defined by a simple combination of one or more of base units. Full table of derived units in page: 37 of your textbook Sub-outcome 4: Recognize and convert between the metric prefixes.
One of advantages of the metric system is the use of prefixes, which are multiples of the basic unit. The table below (page 39 in textbook) defines the accepted prefixes and
Physics I
RKMC - HCT
Learning Outcome 1:
Sub-outcome 1: Assign given basic units to their corresponding physical quantities.
All engineers must use the same language in their communications, and one of these universal communication tools is the units of measurements.
Physical quantities such as length, weight, time, speed, force, and mass are measured with standard units.
Therefore the magnitude if a physical quantity is given by a number and standard unit of measurement. Examples: 5 meters, 60 kilograms.
SI units are the international system of units (system international). The SI Base Units for the seven fundamental Quantities: Note that the above units are stated in MKS (meter-kilogram-second), another French standard unite of measurement is called the CGS ( centimeter-Gram-Second).
Sub-outcome 2: differentiate between the two metric systems of units, meter-kilogram-second, and centimeter-gram-second. Bothe MKS (meter-kilogram-second (SI Units) and CGS (centimeter-Gram-Second) are metric units, but the MKS units are more commonly used worldwide. The CGS and SI systems of units are built in an identical way. The two systems differ only in the scale of two out of the three base units (centimeter versus meter and gram versus kilogram, respectively), while the third unit (second as the unit of time) is the same in both systems. Sub-outcome 3: Derive units of speed, acceleration, force, density, area, volume from basic units. The Derived Units: From the base SI units, many units for other physical quantities were derived.
A derived unit is a unit that is defined by a simple combination of one or more of base units. Full table of derived units in page: 37 of your textbook Sub-outcome 4: Recognize and convert between the metric prefixes.
One of advantages of the metric system is the use of prefixes, which are multiples of the basic unit. The table below (page 39 in textbook) defines the accepted prefixes and