Chapter 0: What Is Electricity Really? Flashcards
Atoms are made up of three types of particles:
Protons, neutrons & electrons
Energy is…
Work
There are how many +/- charges in a conductor vs an insulator?
The same number
Electricity is fundamentally simply…
+/- Charges
In a good conductor, the electrons move…
Easily, like liquid water.
In a good insulator, the electrons are…
Stuck in place, like frozen water (only they can’t melt!)
Like charges _________ and opposite charges _________.
Repel, attract
Movement of charges is called…
Current
A build up (potential) of charges is called…
Voltage
If we have a bunch of charges hanging out, we call it…
Voltage
If we have charges in motion we call it…
Current (or amperage)
Energy is…
Work
In a circuit the electromagnetic effects…
Move energy from one point to another.
“Can’t” is a…
Sucker too lazy to try!
Laziness is
The mother of invention!
Voltage x Current =
Power
Friction =
Force / Speed
Resistance =
Voltage / Current
Resistance represents the amount of effort it takes to…
Move an electron from one atom to the next one.
The Inductor is Analogous to…
Mass
The Resistor is analogous to…
Friction
Mass =
(Force x Time) / Speed
Inductance =
(Voltage x Time) / Current
The Capacitor is analogous to…
A Spring
Spring =
(Speed * Time) / Force
Capacitance =
(Current x Time) / Voltage
It takes Voltage and Current to make
Power
A Resistor is like ______: It creates ________ from ________ flow (resisting it), ________ to the ________ measured across it.
A Resistor is like FRICTION: It creates HEAT from CURRENT flow (resisting it), PROPORTIONAL to the VOLTAGE measured across it.
An inductor is like
A mass
A capacitor is like
A spring
The inductor is _______________ the capacitor.
The inverse of
