Electricity Flashcards
Definition of matter
Everything that has mass and occupies an space (volume)
Matter is made up of
Atoms
What means atom?
Greek. Indivisible
Neutron:
Doesn’t move
Como están representados los átomos?
En la tabla periódica
Definition of electric current
Is the countinuos movement of electrons from an atom to another.
Ley de la cargas eléctricas
Positivo+ positivo= mal
Negativo+ negativo=mal
Positivo+negativo=bien
Tipos de materiales
Conductores
Insulator
Semiconductor
Conductor
Are materials that allow the electrical current to flow through them
Ejemplos de conductors
Metales: Cu Au…
Insulators
Are materials that don’t allow, the electric current to flow through them.
Ejem0los de insulators
Plastic, rubber…
Semiconductor
Are materials that conduct or not the electricity depending on the conditions.
Ejemplos de semiconductor
Silicon, aluminium
Types of electric current
AC/DC
Alternative current
Direct current
Direct current
Corriente continua
Source= battery or cell
Edison
Uses of direct current
Phones, toys, remote control…
Alternative current
Corriente alterna
Source=photvoltais plants, eólic current, sea….
Salburua, sansomendi y olarizu
Uses os alternative current
Fan “mixer”, lamp, microwave…
Representation of DC
Plano
Representation of AC
Olas
Definition of electric circuit
A circuit is a closed loop through charges can countinualy move. It’s made of a material that can conduct electricity and some electrical components connected to it.
Elements os a circuit
Sources, conductor, output element or load, control elements, protection elements.
Sources
Wich supply energy. To the circuit
Conductor
Which allow electricity to flow the generator to the output elements.
Load
Which transform electrical energy into other forms in order to produce light, movements, sound, heat…
Control elements
Switch
Are optional
To controle
Protectional elements
Such as fuses
Optional
Cell
Pila
1,5V
Battery
Bateria
+1,5V
Components sources
Cell and battery
Lamp
Bombilla
X
Motor
Motor
M
Buzzer
Zumbador
Polaridad
Z
Resistor
Resistencia
Vuelta
Components receptors
Lamp, motor, buzzer, resistor
Components: control elements
Rocker switch, circuit switch, PTM, PTB, Push button switch, lint switch
Rocker switch
Interruptor Gasculante
On/off
Circuit switch
2 posiciones
Interruptor de circuito
PTM
Push to make
PTB
Push to break
Push button switch
Pulsador
Lint switch
Fin de carrera
Cine
Components conductor
Wire, connector, bridge
Wire
Cable
Connector
Flema
Bridge
Puente
Fuse
Fusible
Cuadrado.
Electrical quantise
Voltage, intensity and resistance
Voltage difference
The amount of energy that a battery give to the electrons of the circuit, the difference between two points of the circuit.
Volts. Voltmeter
Intensity of the current
Number of electrons that passes through the circuit in a second.
From positive to negative.
Amp A
Ammeter
Resistance
The oposition of a material to the flow of electrons through it.
Ohms
Ohmmeter
Disconnect it
Ohm’s law
V=i x r