Joules
Scales work by measuring things. Thermometer scales work by measuring the temperature of the air and certain liquids for example.
Work is measured in joules per second
joules
Joule.
The formula for measuring the rate of work is: Work = Force × Distance ÷ Time. This formula takes into account the force applied, the distance over which the force is applied, and the time taken to complete the work.
Work means transfer of energy; therefore it is measured in Joule.
if the work is done in a straight path than Work = Force x Distance (otherwise w=FDcos(theta) ) The units of work is the joule.
Measuring the current in each phase (or do you mean 'line'?) will not give you sufficient information to work out what you are asking for.
Feet or meters would work well for measuring the height of the tree.
A graduated cylinder would work.
Measuring energy is equivalent to measuring work done, as both are quantifications of the ability to perform tasks or cause changes. Energy can exist in different forms, such as kinetic, potential, or thermal energy, and can be measured in joules or calories.
Energy. Work done is measured in Watts, 1W = 1J/s.