2007-06-25 01:34:52 · 9 answers · asked by aileen n 1 in Science & Mathematics ➔ Mathematics
SI defines 7 base units; metre , kilogram , second , kelvin , ampere , mole and candela.
a base unit of measurement is not defined in terms of other units but has it owns standard definition.
example :
> kelvin = one kelvin is 1/273.16 of the temperature of the triple point of water.
> second = one second is the time taken for 9192631770 periods of oscillation of the caesium^-1 atom to occur.
hope that helps~
2007-06-25 01:45:56 · answer #1 · answered by wabawuby 2 · 0⤊ 0⤋
si stands for system international de units. these were designed to have an uniform measurement all over the world. some examples of the si base units aremetre, kilogram, candela, mole, second, etc.
2007-06-25 01:46:57 · answer #2 · answered by The 1 Who Thinks HE Knows!!!!! 2 · 0⤊ 0⤋
Meter, Kilogram, Second, Ampere=MKSA
2007-06-25 01:38:21 · answer #3 · answered by mathematician 7 · 0⤊ 0⤋
the meter for distance,
the kilogram for mass,
the second for time,
the ampere for electric current,
the kelvin for temperature,
the mole for amount of substance, and
the candela for intensity of light.
the radian and steradian for plane and solid angles, respectively;
the newton for force and the pascal for pressure;
the joule for energy and the watt for power;
the degree Celsius for everyday measurement of temperature;
units for measurement of electricity: the coulomb (charge), volt (potential), farad (capacitance), ohm (resistance), and siemens (conductance);
units for measurement of magnetism: the weber (flux), tesla (flux density), and henry (inductance);
the lumen for flux of light and the lux for illuminance;
the hertz for frequency of regular events and the becquerel for rates of radioactivity and other random events;
the gray and sievert for radiation dose; and
the katal, a unit of catalytic activity used in biochemistry.
2007-06-25 01:44:08 · answer #4 · answered by sparks9653 6 · 0⤊ 0⤋
they are 7 in all
length=meter,
mass=kilogram,
time=second,
current=ampere,
amount of substance=mole,
light=candela,
temperature=kelvin
2007-06-25 01:45:20 · answer #5 · answered by mishi 1 · 0⤊ 0⤋
mass = kg
time second
length = m
intensity of current = ampere
2007-06-25 01:38:33 · answer #6 · answered by maussy 7 · 0⤊ 0⤋
meter, kilogram, second, ampere, mole, candela, kelvin
2007-06-25 01:38:15 · answer #7 · answered by gebobs 6 · 0⤊ 0⤋
a. 0.0000000000372 g = 3.72 x 10 ^ -11 g b. 45000000000 km = 4.5 x 10 ^ 10 km
2016-05-19 22:32:59 · answer #8 · answered by ? 3 · 0⤊ 0⤋
length=meter=m
mass=kilogram=kg
time=second=s
2007-06-25 01:48:46 · answer #9 · answered by Anonymous · 0⤊ 0⤋