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The SI system has seven basic units which are essentially independent of one another. These are
- metre : length
- kilogram : mass
- second : time
- ampere : electric current
- kelvin : thermodynamic temperature
- mole : amount of substance
- candela : luminous intensity.
The unit for velocity is a metre/second. So momentum is kilogram*(metre/second). The unit for force (Newton), the rate of change of momentum, is kilogram*metre/second2. Pressure is measured as force per unit area and so its measurement unit is kilogram/(metre*second2). Each derived unit is defined in terms of these basic units.
It is, of course, possible to replace one of the basic units by something else - for example a fundamental constant. For example, the measure of length could be replaced by the speed of light in vacuum, c, and then length would be a derived unit: metre = c*second. Several such sets have been suggested: to learn more go to //en.wikipedia.org/wiki/Natural_units
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Why the metric system called a decimal system of measurement?
A decimal number is a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. Measurement units in the metric system are related to one another by multiples of powers of ten (or 1000).
Why is it important to use units of measurement that are the same for everyone?
when one scientist tells another scientist that something is certain length, that measurement should mean the some thing to both of them.
What is the Measurement that tells the number of units that fit along one edge of an object?
What is the unit of measurement for a ruler and a angle ruler??????
How many feet are there in one cent?
A foot is a measurement of distance. A cent is a measurement of area. The two units are therefore incompatible.
Could you use other method to replace the standard of units measurement what are the few example please elaborate for me i just got one example like hand span examples of non standard units measure?
Yes you could. Look at metric and imperial measurement units, consider Roman units and the unit used by the Chinese empire as alternative units of measurement.
