Metric Units

l (distance) - m
t (time) - s
m (mass) - kg
a (area) - m^2
v (velocity) - m/s
p (density) - kg/m^3
g (gravity) - m/s^2
F (force) - N = kg*m/s^2
E (energy) - J = (kg*m^2)/s^2
P (power) - W= (kg*m^2)/s^3