Answer:
1.
Current - belonging to the present time; happening or being used or done now.
power - the ability to do something or act in a particular way, especially as a faculty or quality.
voitage - an electromotive force or potential difference expressed in volts.
energy - the abillity to do work
resistance - the refusal to accept or comply with something; the attempt to prevent something by action or argument.
2.
SI unit of current is ampere. 1 ampere is the constant current that will produce an attractive force of 2 × 10−7 Newton per meter of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one meter apart in a vacuum.
The SI unit of power is the watt (W), in honor of Scottish inventor James Watt (1736 - 1819)
The SI unit for voltage is Volt and is represented by the letter v. volt is a derived SI unit of electromotive force or electric potential
The SI unit of energy/work is the joule (J), named for English physicist James Prescott Joule (1818 - 1889)
The SI unit of electric resistance is the ohm (Ω)