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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
What else can I help you with?
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.
What are the advantages and disadvantage of using different units of measurement?
one disadvantage is that we could get a measurement mixed up with another measurement.
What is an equation that shows how two units of measurement are related?
It depends on which units of measurement you are relating to one another. e.g. 100 degrees Centigrade is equal to 212 degrees Fahrenheit. The equation is as follows: F = C / 5 X 9 + 32
What is the significance of the prefix "per" in various units of measurement?
The prefix "per" in units of measurement indicates a rate or ratio of one quantity to another. It is used to show how one unit is divided or distributed in relation to another unit.
What are the advantages and disadvantage of using different units of measurements?
one disadvantage is that we could get a measurement mixed up with another measurement.
What are the units of measurement for elasticity in economics?
In economics, the units of measurement for elasticity are typically expressed as a ratio or percentage, without specific units. It is a measure of how responsive one economic variable is to changes in another variable.
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 convertion factor?
A conversion factor is a ratio that allows you to convert a quantity from one unit to another. It is usually derived from the relationship between two different units of measurement and is used in mathematical calculations to convert values from one unit to another.
How decimal system is related to the metric system?
They are based on numbers or units being related to one another numbers by powers of 10.
What is the first thing you must check for before subtracting one measurement from another?
In order to subtract or add data you must make sure it has the same units.
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.
