SI Table & Prefixes for SI Units

SI Table

Base physical quantity	Symbol for quantity	SI units name	SI units symbol
Length	l	Metre	m
Mass	m	Kilogram	Kg
Time	t	Second	s
Current	I	Ampere	A
Temperature	T	Kelvin	K
Amount of substance	n	Mole	Mol
Luminous intensity	Iv	candela	Cd

Prefixes for SI Units

Multiple	Prefix	Symbol
10-24	Yocto	y
10-21	Zepto	z
10-18	Atto	a
10-15	Femto	f
10-12	Pico	p
10-9	Nano	n
10-6	Micro	m
10-3	Milli	m
10-2	Centi	c
10-1	Deci	d
10	Deca	da
102	Hecto	h
103	Kilo	k
106	Mega	M
109	Giga	G
1012	Tera	T
1015	Peta	P
1018	Exa	E
1021	Zeta	Z
1024	yotto	Y

Mass:- amount of matter in object

=>  1 kg = 1000 gram

Weight: -force on the object by gravity.

Volume:- (length)³

=>  1 L = 1000 ml, 1000 cm³ = 1dm³

Density:- Amount of mass per unit volume.

=>  SI unit :- Kgm^-3

Temperature:- It is the measurement of cooling or warming.

Three scales

=>  ⁰C (Degree Celsius)

=>  ⁰F degree Fahrenheit)

=>  k (Kelvin)

=>  freezing point of water = 0 ⁰C

=>  Boiling point of water = 100 ⁰C

Relationship

Or,

k = ⁰C + 273.15

Precision:- Closeness of various measurement for same quantity.

Accuracy:- It is the agreement of a particular value to the true value of the result.

Significant figure:- The meaningful digits which are known with certainty.

SI Units - Basic Chemistry in Hindi Part 1

In this video we learn about SI System of units. We learn about 7 basic SI units, derived units, international system of units. In this video of Basic chemistry we get all information about SI units Which are used in physic and chemistry science experiments.
Watch this video at Youtube Link : https://youtu.be/eR6SCVLrVPE

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