Quantity measured |
Name of unit |
Symbol for unit |
Mass (m) |
kilogram |
kg |
Length (l) |
metre |
m |
Time (t) |
second |
s |
Velocity (speed) (v) |
metres per second |
m/s |
Acceleration (a) |
metres per second per second |
m/s2 |
Momentum (M) |
newton second |
Ns |
Force (F) |
newton |
N |
Energy |
joules |
J |
Work |
joules |
J |
Power |
watts |
W |
Density (r) |
kilograms per metre cube |
kg/m3 |
Pressure |
pascal, newtons per metre square |
Pa, N/m3 |
Frequency (f) |
hertz |
Hz |
Temperature |
degrees centigrade, kelvin |
oC, K |
Specific heat capacity |
joules per kilogram per oC |
J/kgoC |
Specific latent heat |
joules per kilogram |
J/kg |
Charge (Q) |
coulombs |
C |
Current (I) |
amps |
A |
Voltage (V) |
volts |
V |
Potential difference |
volts |
V |
Resistance |
ohms |
W |