Basic of Electronics – Voltage
Students will learn the following things:
- What is electronics?
- How an electronics circuit works with an analogy of Pump Water system.
- Key terms and their meanings – Voltage, Battery & Polarity.
- How to measure the voltage of an AA battery using evive.
The key learning from this lesson will be how electronics circuit works.
1 set of the following material per group of 3-5 students:
Discuss what is electronics? Give a brief description and ask students to name 10 electronics devices that they can find in their everyday life.
Tell students how electricity starts with electron or charge, by giving them very brief information about different parts of an atom. We will not go deep into the concept. We just want students to know from where charge come.
Introduce pump water system to the student to make an analogy between water flow using pump and electronic circuit.
- Water – Charge
- Pump – Battery
- The pressure generated by the pump – Voltage
- Pipe – Wire
- Rate of flow of water – Current
- Thin pipe – Resistance
Discuss the meaning of the following key terms:
- Voltage – Voltage is nothing but a type of pressure difference that a power source creates at its two ends. This difference makes the charge flow around the circuit.
- Battery – Battery is the power source of the circuit which provides voltage.
- Polarity – Polarity is the property of having two poles that have opposite physical properties: Positive and Negative.
Discuss how to measure voltage using evive and perform the activity of measuring the voltage of a battery (AA) using evive.