Electricity
Electricity
Electricity is the flow of tiny particles called electrons and protons. It can also mean the energy you get when electrons flow from place to place. Scientists have learned how to generate, or create, electricity. This is useful because electricity that is generated can be controlled and sent through wires. It can then power such things as heaters, light bulbs, and computers. Today, electricity provides most of the energy to run the modern world.
https://kids.britannica.com/kids/article/electricity/353091
Electricity and its uses:
Identify uses of electricity in society
Understand electricity flows as a current
Explore electrical circuits
Use diagrams to represent simple electrical circuits
Understand electric circuits enable chemical and electrical energy to be transferred into useable forms such as heat, light, sound and kinetic
explore electrical conductors and insulators and links to safety
The Atom -
and its role in electrical current
Atoms are made of a nucleus which contain protons (+ve charge) and neutrons (no charge). Surrounding the nucleus is a cloud of electrons(-ve charge). These electrons are loosely held in place by the positively charged nucleus of the atom.
An Electrical current is the result of the movement of these negatively charged electrons moving through a circuit
C Circuit 3 cell 0.39.wmvElectrical current
A great way to visualize electrical current with each electron travelling around the circuit delivering energy to the components of the circuit before returning to begin again.
Electricity
Electricity is the flow of electron along a pathway(wire) Watch this video to understand more how electricity flows through a circuit.
Voltage and Current
Voltage
Voltage(V) is the pressure from an electrical circuit's power source that pushes charged electrons (current) through a circuit.
Current
Current(I) is a measure of electron flow around a circuit and is measured in amperes(A)
C Circuit 4 Ammeter 0.09.wmv
Series and Parallel Circuits
A Series circuit has all the components connected in a single pathway, while a parallel circuit has more than one pathway for the current to flow.
electric circuits.pptSeries and Parallel Circuits
This presentation will help you understand how voltage and current changes differ in Series and Parallel Circuits.
Try to answer the questions on the last slides to check your understanding of Voltage and Current readings in these two different types of circuits.
Which type circuit would be best to use in your house?
Some worksheets to complete to check your understanding of Series and Parallel Circuits.
Also try out this Quiz to test your understanding of Current and Voltage in series and Parallel circuits BBC Bitesize
Try your luck at the Quiz to test your understanding of Electrical circuits...