Measurements Flashcards
Metric
A decimal system of messers and weights, based on the meter and gram. The length of one meter is 39.371.
Volume
The three-dimensional capacity of a given space.
Density
Weight per unit volume of a substance.
Power
The amount of work per unit of time. Source or men’s of supplying energy. In electricity is symbol is P and its units are the watt and kilowatt. Formula is P = volts x amps.
Temperature
The degree or intensity of hotness or coldness of anything as measured by a thermometer. The measurement of the intensity of speed of molecular motion.
Length
A measurement of linear distance form point A to point B.
SI Units
System International. A unit in the metric system of measurement adopted by most technical industries throughout the world
TD
Temperature difference.
Velocity
The rate of motion in a particular direction relation to time speed.
Kelvin
The thermometer scale on which the unit of measurement equals the centigrade degree and according the which absolute zero is 0 degrees, the equivalent of -273.16. Water freezes. Water freezes at 273.16 and boils at 373.16.
Area
Square measure found by multi ping length x width, or a circular the pi value of 3.141 by the radius square.
Mass
A quantity of matter cohering together to make on body which is usually of indefinite shape.
Is measure of quantity of matter that a body or object contains.
Force
That which produces or tend to produce, motion. It is accumulated pressure and expressed in pounds. If the pressure is to psi on a plate of 10sq in area. The force is 100 lbs.
Absolute 0
The zero themodymic temperature, the temperature of -273.16 c or (- 459.69 f) the hypothetical point at which all molecular activity ceases.
Flow rate
Amount fo fluid passing a given pint per unit time. Also the fuel input to burner measured in suitable units. Eg cubic centimeter per minute , gallons per hour , pounds per hour. It is referred to as firing rate.
