Modern Definition Flashcards
(5 cards)
0
Q
Kilogram
A
The mass of the International Prototype Kilogram, a small cylinder of platinum-iridium preserved in a vault in France.
1
Q
Meter
A
The distance light travels in a vacuum in 1-299,792,458 of a second.
2
Q
Liter
A
The distance light travels in a vacuum in 1-299,792,458 of a second.
3
Q
Second
A
The duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom (at a temperature of 0 K)
4
Q
Kelvin
A
The fraction 1/273.16 of the thermodynamic temperature oft he triple point of water.
