What are metric meausurments?

Answer 1

The base units for the SI system are: length-meter, mass-kilogram, time-second, temperature interval-deg kelvin(or celsius), electric current-ampere, amount of substance-mole, luminous intensity-candela.

Some derived units are: area-hectare(10,000 sq m), volume-liter, weight-newton, energy-joule, power-watt, pressure-pascal or bar, frequency-hertz, angle-radian, potential difference-volt, resistance-ohm, capacitance-farad, inductance-henry

Answer 2

The basic units in the metric system are:

Mass . . . . . Kilogram

Length. . . . Meter

Time. . . . . . Second

Charge. . . . Coulomb

All other units are combinations of these.

Answer 3

LengthThe standard unit of length in the metric system is the meter. Other units of length and their equivalents in meters are as follows:

1 millimeter = 0.001 meter

1 centimeter = 0.01 meter

1 decimeter = 0.1 meter

1 kilometer = 1000 meters

We symbolize these lengths as follows:

1 millimeter = 1 mm

1 centimeter = 1 cm

1 meter = 1 m

1 decimeter = 1 dm

1 kilometer = 1 km

For reference, 1 meter is a little longer than 1 yard or 3 feet. It is about half the height of a very tall adult. A centimeter is nearly the diameter of a dime, a little less than half an inch. A millimeter is about the thickness of a dime.

VolumeThe standard unit of volume in the metric system is the liter. One liter is equal to 1000 cubic centimeters in volume. Other units of volume and their equivalents in liters are as follows:

1 milliliter = 0.001 liter

1 centiliter = 0.01 liter

1 deciliter = 0.1 liter

1 kiloliter = 1000 liters

From these units, we see that 1000 milliliters equal 1 liter; so 1 milliliter equals 1 cubic centimeter in volume. We symbolize these volumes as follows:

1 milliliter = 1 ml

1 centiliter = 1 cl

1 deciliter = 1 dl

1 liter = 1 l

1 kiloliter = 1 kl

For reference, 1 liter is a little more than 1 quart. One teaspoon equals about 5 milliliters.

MassThe standard unit of mass in the metric system is the gram. Other units of mass and their equivalents in grams are as follows:

1 milligram = 0.001 gram

1 centigram = 0.01 gram

1 decigram = 0.1 gram

1 kilogram = 1000 grams

We symbolize these masses as follows:

1 milligram = 1 mg

1 centigram = 1 cg

1 decigram = 1 dg

1 gram = 1 g

1 kilogram = 1 kg

For reference, 1 gram is about the mass of a paper clip. One kilogram is about the mass of a liter of water.

TimeThe following conversions are useful when working with time:

1 minute = 60 seconds

1 hour = 60 minutes = 3600 seconds

1 day = 24 hours

1 week = 7 days

1 year = 365 1/4 days (for the Earth to travel once around the sun)

In practice, every three calendar years will have 365 days, and every fourth year is a "leap year", which has 366 days, to make up for the extra quarter day over four years. The years 1992, 1996, 2000, and 2004 are all leap years. This gives us a total of 52 complete 7 day weeks in each calendar year, with 1 day left over (or 2 in a leap year).

The year is divided into 12 months, each of which has 30 or 31 days, except for February, which has 28 days (or 29 days in a leap year).

TemperatureTemperature is expressed in degrees Celsius in the metric system. The boiling point of water (at sea level) is 100°Celsius, or 100°C. The freezing point of water (at sea level) is 0° Celsius. A hot day is about 30° Celsius. Decimals in measurementWe use decimals to specify units of measurement when we need more precision about length, volume, mass, or time. For example, when specifying the height of a person 1.63 meters tall, to say that person is 1 or 2 meters tall doesn't give us a very good idea of how tall that person really is.

The prefixes for the different units of length, volume, and mass in the metric system obey the following rules:

PrefixMultiply bymilli-0.001centi-0.01deci-0.1deka-10hecto-100kilo-1000

So for example:

1 hectometer = 100 meters

1 centigram = 0.01 gram

3 milliliters = 3 × (0.001 liters) = 0.003 liters

0.9 kilometers = 0.9 × (1000 meters) = 900 meters

Answer 4

The metric system is based on internationally agreed standard units of measurement. These are

• metre : length
  
• kilogram : mass
  
• second : time
  
• ampere : electric current
  
• kelvin : thermodynamic temperature
  
• mole : amount of substance
  
• candela : luminous intensity.
  

Orders of magnitude for measuring the same attribute are related by simple multiples or fractions of powers of ten conversions and only a handful of prefices are required (although there are a lot more). By way of contrast, the Imperial system uses:

• 2 pints in a quart
• 3 feet in a yard
• 4 quarts in a gallon
• 6 feet in a fathom
• 8 furlongs in a mile
• 9 square feet in a square yard
• 12 inches in a foot
• 14 pounds in a stone
• 16 ounces in a pound

and so on, and on and on. The decimal structure also makes it simple to use scientific notation for very small and very large quantities.

Answer 5

The basic units of the metric system are meter for length, liter for volume, and gram for mass.

Answer 6

These are measurements realized with the SI system and adequate instruments and standards for this system.

Answer 7

These are measurements in which the units are defined by the metric system.

Answer 8

They are measurements of physical characteristics made using units defined under the metric system.