[Ether]

1-5)

"Source is the amount of power available for a circuit"

"Sink is drop in voltage across a circuit"

Read literally, you are saying "source" is measured in watts and "sink" in volts. I don't think that's what you intended.


1-6)
Voltage is the "Difference between amount of electrons at 2 ends of the source"

Not really. It's the difference in electrical potential.

1-7)
current is "The amount of electrons flowing in a circuit (kind of)"

It's the number of electrons flowing past a given point in the circuit per second, divided by
6.24×10¹⁸


1-12) encoder "Detects how fast something is turning"

...and/or how far it has turned.



4-3) Maximum efficiency is "Most torque and RPM per Amp"

Efficiency is output shaft mechanical power expressed as a percent of input electrical power.