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Electricity
To study for electricity test
23
Science
7th Grade
01/31/2013

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Cards

Term
AC
Definition
Alternating Current
Term
DC
Definition
Direct Current
Term
A
Definition
Ampere
Term
LED
Definition
Light Emitting Diode
Term
C
Definition
Capacitance
Term
F
Definition
Farad
Term
mA
Definition
milliamp
Term
The work that electricity does usually results in-
Definition
Light, heat, sound, motion
Term
We build circuits to control
Definition
Voltage and Current
Term
Amperes or amps for short
Definition
Is the unit of measurement for current
Term
For any circuit to be complete, there must be a complete path
Definition
from the negative side of the battery to the positive side
Term
Diode
Definition
One-way gate in a circuit
Term
Current flows from a point of
Definition
High voltage to low voltage
Term
If point A is 10 volts and point B is 2 volts, then the voltage measured between them is
Definition
8 volts
Term
The lowest voltage in a circuit is
Definition
0 volts and is called ground
Term
When two points with different voltage levels are connected with no resistance between two points it is called
Definition
Short circuit
Term
Resistors
Definition
Determine how much current will flow through a component
Term
Resistance
Definition
Is given in units of ohms
Term
Wires are made of metal
Definition
because it has low resistance
Term
Volts = Amps X Ohms
Definition
Ohm's law
Term
Variable resistor
Definition
potentiometer
Term
Closed circuit
Definition
Electricity flows
Term
Open circuit
Definition
Electricity does not flow
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