Overhaul of SI Units Flashcards
1
Q
How many fundamental units are there ?
A
7
2
Q
What is the unit of distance ?
A
Meter
3
Q
What is Meter defined on ?
A
Speed of light
4
Q
What is the unit of mass ?
A
Kilogram
5
Q
What is kilogram defined on ?
A
Planck constant
6
Q
What is the unit of time ?
A
Second
7
Q
How is the second defined ?
A
Caesium 133 atom
8
Q
What is the unit of current ?
A
Ampere
9
Q
What is the unit of temperature ?
A
Kelvin
10
Q
What is the unit of amount of a substance ?
A
Mole
11
Q
What is the unit of luminosity ?
A
Candela
12
Q
What is the full form of CGPM ?
A
General Conference of Weights and Measurements
13
Q
What is the main executive body of CGPM ?
A
BIPM
14
Q
The standards of which fundamental units were changed ?
A
Mass - Kilogram
Current - Ampere
Amount of a Substance - Mole
15
Q
What is Kelvin measured based on ?
A
Boltzmann Constant
