Grootheid
|
Symbool
|
Eenheid
|
Omrekeningen
|
Kracht
|
F
|
N(ewton)
|
F = M * g
N = kg * m/s²
|
Massa
|
M
|
kg
| |
Gewicht
|
G
|
kg (vroeger kgF)
|
1 kg = 10 N
|
Druk
|
P
|
Pa (= N/m²)
|
P = (F/A)
1 hPa = 100 Pa
1 kPa = 103 Pa
1 Mpa = 106 Pa
1 atmosf = 67 mmHg
1 bar = 105 Pa
1 bar = 1 mWK
1 bar = 10 kPa
|
1 mWK
|
0,1 bar
|
10 KN/m²
|
10 KPa
|
0,01 N/mm²
|
1 MPa
|
100 mWK
| |||
1 atmosfeer
|
760 mmHg
|
1,013 bar
|
Symbool
|
Voorvoegsel
|
Vermenigvuldigingsfactor
|
E
|
exa
|
10 18
|
P
|
peta
|
10 15
|
T
|
tera
|
10 12
|
G
|
giga
|
10 9 = 1 000 000 000
|
M
|
mega
|
10 6 = 1 000 000
|
k
|
kilo
|
10 3 = 1 000
|
h
|
hecto
|
10 2 = 100
|
da
|
deca
|
10 1 = 10
|
--
|
--
|
(10 0 = 1)
|
d
|
deci
|
10 -1 = 0,1
|
c
|
centi
|
10 -2 = 0,01
|
m
|
milli
|
10 -3 = 0,001
|
µ
|
micro
|
10 -6 = 0,000 001
|
n
|
nano
|
10 -9 = 0,000 000 001
|
p
|
pico
|
10 -12
|
f
|
femto
|
10 -15
|
a
|
atto
|
10 -18
|
1000 liter water op 1 m² geeft 1 mWK of één meter waterkolom
1 are = 100 m² ... 1 ha = 1 hectare = 100 are = 10000 m²
