second, Time - The way we measure the passage of time, metre, Length - The measure of distance, kilogram, Mass - The amount of an object there is., Ampere, Current - The flow of electricity in a circuit, Kelvin, Temperature - How hot or cold an object or environment is., Candela, Luminous Intensity - The quantity which describes the power of a source to emit light in a given direction, metre Squared, Area - The amount of space an object covers in two dimensions, metre cubed, Volume - The amount of space an object takes up in three dimensions., kilograms per metre cubed, Density - How tightly packed in the mass of an object is, metres per second squared, Acceleration - How much an object is speeding up in a given time., Coulomb, Electric Charge - A grouped quantity of electrons flowing through a circuit, Volt, Potential difference - How hard electricity is being pushed, electrical pressure, measured with loads connected or across a load, on load voltage., Volt, electromotive force - How hard electricity can be pushed, electrical pressure, measured without loads connected, off load voltage., Ohm, Resistance - An opposition to current flow in a circuit, Hertz, Frequency - The number of cycles per second of an AC waveform., Watt, Power - The rate of doing work or the rate at which electrical energy is dissipated in the form of light, heat, etc., Joule, Energy - The ability to do work, electrical energy takes into account the amount of time the load is on for., Ohm metre, Resistivity - The specific resistance of a material, Newton, Force - The amount of push or pull on object., Newton, Weight - The force resulting from gravity acting on a mass., Joule, Work - A mechanical unit, the transfer of energy that occurs when an object is moved., Tesla, Magnetic Flux Density - The amount of magnetism in a given area., seconds, Periodic Time - The amount of time it takes for an AC waveform to complete one full cycle., Henrys, Inductance - How good a coil is at generating electricity in itself or another coil., Farads, Capacitance - An indication of how much electrical charge a capacitor can store., Ohms, Inductive Reactance - The opposition to current flow caused by a coil in an AC circuit., Ohms, Capacitive Reactance - The opposition to current flow caused by a capacitor in an AC circuit., Ohms, Impedance - The total opposition to current flow in an AC circuit.

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