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ELECTRICITY AND DIRECT CURRENT CIRCUITS, CREATED BY: SARA PÉREZ AND…
ELECTRICITY AND DIRECT CURRENT CIRCUITS
ELECTRICITY. ELECTRICAL ENERGY
Electricity: is a form of energy that lets negatively
charged particles (electrons) move from one atom
to another
Electric current
is the flow of electrons from one atom to another inside a conducive materials
Electrical energy
is the most common formof energy,(light, heat, sound and motion)
CONDUCTORS AND INSULATORS. ESTATIC ELECTRICITY
Conductors:
Are the materials that the electricity pass througt them
Static electricity:
Is when are a accumulation of charge in a material
Insulators:
Are the materials that the electricity can´t pass throuh them
ELECTRICAL CIRCUITS. COMPONENTS
Load devices
components that recive the electrical energy from the power sources and convert it to other types t
Power sources
components that supply the necessary electrical energy to rest of the circuit in order to move the electrons. The generators are cells and batteries
Control devices
devices that regulate the circuit, the main types of control devices are one-way switches and two-way switches.
Conductors
components that transport the electrical energy from the powe sources to the load devices.The conductive components of a circuit are the wires
Electric circuits
is a series of interconnected componenents that an electric current flows through to produce an effect .
OPEN CIRCUITES AND CLOSED CIRCUITS. SHORT CIRCUIT
You can close or open a circuit using a swith
Close circuit:
when the energy of the power source reaches the load devices, so the electric current flows
Open cicuit:
when the energy of the power source cannot reach the load devices, so the electric current cannot flow.
COMPONENTS OF A CIRCUIT
Power sources
CELL
Have a positive terminal and negative terminal; this lets them supply electric current to the circuit when they are connected
BATTERY
A grouped set of cells
Conductors
WIRE
The component that the electric current flows through
Control devices
ONE-WAY SWITCH
The switches open and close the circuit when they are pressed. One posicion open the circuit and stops the electric current, the other posicion lets pass the electric current.
PUSH SWITCH
Puch the switch open and close the circuit but only while the button is pushed. Normaly open (NO) and closed (NC).
TWO-WAY SWITCH
Two-way shitches have two positions. When we press them, they change from one position to other.
Load devices
MOTOR
Converts electrical energy to sound energy.
BUZZER
Converts electrical energy to sound energy.
LAMP
Converts electrical energy to light energy
RESISTOR
A load device thar opposes the flow of the electric current.Converts electrical energy to heat energy.
TYPES OF CIRCUITS
Series-paralel combination circuit
PARALEL CIRCUIT
SERIES CIRCUIT
CONVERTING ELECTRICAL ENERGY
Ligth
We can convert electricity to light
Heat
When electrons move through a conductor or load device, they create friction with the material as they pass througth produce heat, this is call
Joule effect
Motion
We can also convert electricity to motion using a motor,The effect obtained when make an electricity current flow througt a motor
Sound
We can use electrical energy to transmit sounds througth microphones and we can produce sound effects througth sirens, buzzers and bells
ENERGY AND THE ENVIROMENT
Enviroment impact of energy production and transmission
Electrical energy is generated industrially in power stations,which convert a form of energy. The use of renewable energies is being promoted as a green alternative to conventional power stations.
Responsible use of electrical
When we save energy, we save money too but more importantly, we save natural recourses and help to protect the environment. Here are a few tips on responsible energy use:
Low energy bulbs
When they are full
Consume less energy
Switch off electronic equipment
CREATED BY:
SARA PÉREZ AND NICOLÁS VERDES
