Term 3: Energy & Change: Electric circuits
Objectives:
At the end of the demonstration, learners should be able;
• to identify the symbols used in an electric circuit.
•to demonstrate how to build a series and parallel circuit by using a virtual online program.
What is electricity?
Electricity is made from the movement of electrons. Every single item in the whole world is made up of tiny, tiny things called atoms.
Electrons are inside each of these tiny atoms.
These electrons have a negative charge causing them to move from one area to another, creating electricity.
Electricity flows easily through metals but not through other materials.
Electricity can flow when there is a complete circuit.
Metals are good electrical conductors.
Three main elements in an electric circuit:
1. Source of energy (cell/battery)
2. Conductive materials (wires)
3. Devices (lightbulbs, buzzers or motors) which changes the electricity into useful output energy such as light.
The differences between series & parallel circuits:
Series Circuit:
All components are connected end-to-end, forming a single path for current flow
Parallel circuits:
All components are connected across each other, forming exactly two sets of electrically common points
Is this a series or parallel circuit?
Let's do an electrical circuit quiz
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