The SI has seven base units (kilogram, meter, second, ampere, kelvin, mole, candela), and lots of derived units - for example, meter/second for speed/velocity, coulomb = ampere x second for electrical charge, etc.
The unit that measures wave frequency is hertz (Hz).
The unit that measures the amount of energy released by nutrients is the calorie.
The unit that measures electrical resistance is called ohm. It is represented by the symbol Ω.
1 square unit
Gram
OHM
It is degrees.
centimeters
a litre.
A scale.
Millimeters
Power