m⇔R, F⇔V, v⇔I

K=1/2 mv^2, E = mc^2   ⇔  P=RI^2

P=Fv  ⇔  P=VI

where

K = Kinetic energy

m = mass

v = velocity

E = Energy

c = light speed

P = Power

R = Resistance

I = current

F = Force