ELECTRICITY-1
ELECTRICITY-2
ELECTRICITY-3
ELECTRICITY-4
ELECTRICITY-5
100
When electricity moves only in one direction
Direct current or DC
100
Copper is a good __________ of electricity.
Conductor
100
The basic building blocks of all objects and substances.
Atom
100
If you place a 50 Volt power source across a 10 Ohm resistor, what will the current be?
I = V/R = 50/10 = 5 A
100
What part of a circuit is this object?
Energy source or Battery
200
What does this symbol represent?
Resistor
200
This allows electrical flow to happen easily.
Conductor
200
How to calculate the resistance of a circuit
V= RI
Voltage = resistance * Current
200
Does this diagram represent a series or parallel circuit?
Series circuit
200
Does this diagram represent a series or parallel circuit?
Parallel
300
What charges does an electron, proton and neutron have ?
Electron- positive
Proton-negative
Neutron- neutral
300
A complete loop through which an electrical current travels.
Closed circuit
300
If you have a 12 Volt battery placed across a 6 Ohm resistor, what will the current be?
I = V/R = 12/6 = 2 A
300
Does this diagram represent a series or parallel circuit?
Parallel Circuit
300
What can make electrons in a circuit flow or stop?
Switch
400
Electric charges builds up on the surface of an object
Static electricity
400
What types of charges attract ?
Unlike charges.
400
What do we call current that changes direction ?
Alternating current (AC)
400
What happens to the brightness of the light bulbs in a series circuit when you add more lights?
Each bulb gets dimmer
400
How many volts of electricity comes through a typical wall outlet in your home?
220V - 240V
500
Continue movement of electron flow in a circuit
Current
500
The inventor of the lightbulb was?
Thomas Edison
500
What is the unit of measurement for electrical current?
Ampere or Amps
500
If the resistance of a circuit is 5ohms and it has a current of 10A, what is the voltage?
V = RxI --> V=5x10 --> V=50
500
What does L.E.D stand for?
Light-Emitting Diode