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Electricity: By Javier Pérez and Mateo Tarrés - Coggle Diagram
Electricity: By Javier Pérez and Mateo Tarrés
electrical energy (200)
All materials are made up of atoms
Components (202-205)
Representing circuits (206)
Converting electrical energy (218)
Energy and environment (219)
We use electricity in our every day activities
Environmental impact of energy production and transmission: Is fenerated industrially in power stations
Responsible use of electrical energy: When we save energy we save energy
Tips for energy use: :
Low energy bulbs :check:
Consume less energy :check:
When they are full :check:
Switch off. :check:
It can be converted to other tipes of energy :
Light :check:
Heat :check:
Motion :check:
Sound :check:
Load devices: Resistor, Lamp, Motor, Buzzer : :question:
We represent electrical circuits with a very simple drawing called an electric schematic
Stardardised symbol
Difference between NO and NC push switches
Circuits with two-way switch
Circuit with multiple load devices
Circuit with multiple control devices
is a series of interconnected components that an electric current flows through them
Load devices
Control devices
Conductors
Power sources
Components: Power sources (Cell, Batery)
Load devices: Lamp, Motor, buzzer Resistor.
Conductors: Wire
Control devices: One-way switch, Push switch, Two-way switch
The force of atraction and repulsion that generate electricity
Electric current is a flow of electrons from one atom to another.
Electrical energy is the most common form of energy.
Electtricity is a form of energy that move charged particles from one atom to another.
Conductors and insulators (201)
Materials that let electric current flow through them are conducters
Materials that do not let electric current flow through them are insulator
The electrician tools are made of insulators materials such as wood
Open circuits... (208-209)
Types of circuits (212)
Paralel circuits (215-217)
resistances THe equivalent resistance is equal to the sum of all resistance in the circuit
currents the current flowing through all of the resistors in the circuit isis the same and is equal to the curret of the equivalent circuit.
voltages the total voltage delivered by the power source is the sum of the potential drops across each of the resistors
Series circuits: All the components are connected one after the other. It flows through the load devices. If one stop working. None of hem will work. THe lamps will not be very bright.
Parallel circuits: In these circuit the load devices are conected on different branches of the wire. THe current does not flow equally through the devices. More electric current flows in the branch. If one stop working, the others will continue.
Series-Parallel combination circuits: These circuits contain devices connected in series and in parallel
open: When the energy of the power source cannot reach the load device.
Closed: When the energy of the power source reaches the load devices.
In more complex circuits, the easist way to see whether a circuit is closed or open is following an imaginary path from the positive terminal to the negative terminal
Short circuits
Ohm,s law (210-211)
There are three main variables
Current
Voltage
Resistance
I=V/R
1789-1854
