The properties of an object or event that we measured, for example
body length, body mass, the length of time running around a
field called the scale, what scale we can measure from a
book?
In a book, we can measure the mass, length, width, and
thick book. How do we express the results of measuring the length of the book?
For example, a book length equal to 25 inches; centimeters called
unit of length scale. The mass of books equal to 1 kilogram, kilograms
called the unit of mass scale. So always follow the scale unit,
never before him.
In our society there is sometimes
units that are not standard or non-standard, such as unit length
selected fathoms or span. The unit is not standard because it does not have
same size for different people. One inch of adult
another with one inch of the children. That is why the span and not depa
used as a standard unit of measurement physics.
Are the conditions that must be possessed of a unit that can be a unit
standard? Some of the main requirements are as follows:
Unit system most widely used around the world, which is valid
in interasional is the SI unit system, short for language
French Systeme International d'Unites. This system was proposed in the General
Conference on weights and Measures of the International Academy of
Science in 1960. In this unit system, there are seven scale
the so-called principal amount.
body length, body mass, the length of time running around a
field called the scale, what scale we can measure from a
book?
In a book, we can measure the mass, length, width, and
thick book. How do we express the results of measuring the length of the book?
For example, a book length equal to 25 inches; centimeters called
unit of length scale. The mass of books equal to 1 kilogram, kilograms
called the unit of mass scale. So always follow the scale unit,
never before him.
In our society there is sometimes
units that are not standard or non-standard, such as unit length
selected fathoms or span. The unit is not standard because it does not have
same size for different people. One inch of adult
another with one inch of the children. That is why the span and not depa
used as a standard unit of measurement physics.
Are the conditions that must be possessed of a unit that can be a unit
standard? Some of the main requirements are as follows:
1. Unit value should be fixed, either in hot or cold weather, for people
adults and for children, and to changes
other environments. For example, the span can not be used as a unit
default because different for each person, while
meter applies equally well to adults mapun children. By
therefore, the meter can be used as standard units.
2. Easily recoverable (easy to imitate), so that others who want to
use these units in measurement can
obtain it without much difficulty. Unit mass is kilogram,
easily be recovered by a comparison. Thus,
pounds can be used as standard units. Can we imagine,
how busy if a unit are difficult to make a replica so that the world
there is only one standard unit. Other people who want
measure the amount in question must use only
The standard units to obtain accurate results.
3. The unit must be internationally accepted. It deals with
interests of science and technology. By deterimanya a
unit as international units, the scientists from one country
can easily understand the measurement results from scientists in other countries.
Unit system most widely used around the world, which is valid
in interasional is the SI unit system, short for language
French Systeme International d'Unites. This system was proposed in the General
Conference on weights and Measures of the International Academy of
Science in 1960. In this unit system, there are seven scale
the so-called principal amount.
