Multiplii si submultiplii

Denumirile multiplilor si submultiplilor in cadrul SI se formeaza cu prefixele:

Yotta (Y) = 1024=1 000 000 000 000 000 000 000 000
Zetta (Z) = 1021= 1 000 000 000 000 000 000 000
Exa (E) = 1018 = 1 000 000 000 000 000 000
Peta (P) =1015 = 1 000 000 000 000 000
Tera (T) = 1012= 1 000 000 000 000
Giga (G) = 109 = 1 000 000 000
Mega (M) = 106 = 1 000 000
Kilo (k) = 103 = 1 000
Hecto (h) = 102 = 100
Deca (da)= 101 = 10
Deci (d) = 10-1 = 0.1
Centi (c)=10-2 =0.01
Mili (m)= 10-3 =0.001
Micro (µ)= 10-6 =0.000001
Nano (n)= 10-9 =0.000000001
Pico (p)= 10-12 =0.000000000001
Femto(f)= 10-15 =0.000000000000001
Atto (a) = 10-18 = 0,000000000000000001
Zepto (z) = 10-21 = 0,000000000000000000001
Yocto (y) = 10-24 = 0,000000000000000000000001

Timpul – multiplii si submultiplii ai secundei
Multiplii:
- ziua — 1 zi = 24 ore = 1440 min = 86 400 s
- ora — 1 ora = 60 min = 3 600 s
- minutul — 1 min = 60 s

Submultiplii:
- milisecunda — 1 ms = 10-3s
- microsecunda — 1 μs = 10-6s
- nanosecunda — 1 ns = 10-9s

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