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Electricity anddirect current cicuits - Coggle Diagram
Electricity anddirect current cicuits
elctrical energy
atoms
electrons
negative charge
protons
positive charge
neutrons
neutral charge
electricity
is a form of energy that lets negately charged partcles
elcectric current
is the flow of a electron from one atom to another
it has to be trough a conductor
Conductors and insulators
Conductors like:
Gold, bronze and silver
Cooper
Aluminium
Insulators
Wood
Plastic
Carboard
What is static electricity?
What causes this phonemonom?
Materials are composed of atomswith a neutral charge; in other words the have the same number of protons(positive charge) and electrons, but this balance can be altered when the material is rubbed
Why does this happens?
The protons in the paper are attracted by the greater number of electrons in the sentence
Stactic electricity is a phenomenon caused by acumulation of charge in a material
representing circuits: electrical schematics
examples of representions of circuits
simple circuit with one-way switch and lamp
simple circuitwith one-way switch and buzzer
components of a circuit
power sources
cell
battery
load device
lamp
motor
resistor
buzzer
conductors
wire
control device
one-way switch
push switch
two-way switch
Electric circuits
Power sources
This group is formed by components that supply the necessary electrical energy to the rest of circuits
cell
battery
Load devices
This group is formed by components thet recive the electrical energy form the power surces and convert it in other types of useful energy
Lamp
Buzzer
Motor
Resistor
Control devices
This group is formed by devices that regulate the circuit:
one-way switch
two-way switch
push switch
Conductors
This group is formed by components that transport the electrical energy fron the power devices to the load devices
Wire
circuits
open circuits
off, lamp isn´t lit and electricity current doesn´t flow
closed circuits
on, the lamp is lit and electric current flows, reaches the lamp to light
short circuis
if the current doesn´t pass trough an obstacle
types of circuits
series circuits
the same current flows in te lamps to light it
parallel circuits
the current has to `choose´ one of two or more
series-paralllel combination circuits
if a circuit pass trought one lamp and then has to `choose´
main electric variables
current
the number of electrons in determinate moment
represented with amperes (A)
voltage
the different in charge between two points
represent with volts (V)
resistance
oppositios to the flow of electricity
represented by ohm
ohm´s law
three relations in variables
resistance
R
voltage
V
current
I
to calculate I
you have to divide V between R
to calculate V
you have to multiply R by I
too claculate R
you haveto divide V between I
this is a guide
Energy and the enviroment
Enviroment impact of energy production and transmission
Many power stations have a impact on our enviroment because they pollute the atmosphere, add to the greenhause effect, pollute the water,ect.
Responsible use of electrical energy
When we save energy, we save the money too but more importantly, we save natural recurses and help to protect the enviroment. Here are tips on responsible energy use:
Replace incasdecents bulbs with low energy bulbs
Use certain domestic appliances only when they are full
Replace old electrical appliances with more efficents ones
Always switch off electronic equipement
converting electrical energy
can produce
light
lamp
heat
motion
motor
sound
buzzers and bells
load devices
resistor
heat energy
lamp
ligth energy
motor
kinetic energy
buzzer
sound energy
David García and Raúl
