Ch3 Electricity, Components, Circuits Flashcards
1
Q
current (I, i)
A
the flow of electrons (negatively charged atomic particles)
2
Q
amperes (A, a)
A
unit of measurement for current which is always measured as the flow through something
3
Q
ammeter
A
the instrument used to measure current
4
Q
voltage (E, e)
A
AKA electromotive force,; the electric potential that makes electrons move; electrons move in the direction of positivity
5
Q
polarity
A
the convention that determines which voltages are positive and negative
6
Q
volts (V)
A
unit of measurement of voltage
7
Q
voltmeter
A
the instrument used to measure voltage; measured from one point to another, sometimes ground
8
Q
direct current (dc)
A
current that flows in one direction all the time
