Electricity
Mr. Vali Aliyev
Charge Flow in Circuits
Explanation: Electricity is the movement of tiny particles called electrons in a closed circuit.
Analogy: Think of charge flow like water flowing through a pipe—if the pipe is broken, water stops
flowing.
Key Idea: Charge flows from the power source, through the circuit, and back to the source.
Setting a Basic Circuit
Components: Battery, wires, and a bulb (or buzzer).
Steps to Build:
1. Connect the battery’s positive terminal to one end of a wire.
2. Connect the other end of the wire to a bulb.
3. Attach another wire from the bulb back to the battery’s negative terminal.
4. The bulb lights up when the circuit is closed.
Modelling Electricity by Using Rope
Why? It helps students visualize how electricity moves.
How It Works:
– A group of students stands in a circle holding a rope.
– One student moves the rope in a loop—like electrons moving in a circuit.
– If someone lets go, the loop breaks (like an open circuit).
VIDEO: https://youtu.be/Wt7QaPb5Tko
Activity
Page 166-167 (Tasks 1,2,3)
Conductors and Insulators
Conductors: Materials that allow electricity to pass
through (e.g., metals like copper, aluminum).
Insulators: Materials that block electricity (e.g.,
rubber, plastic, wood).
Real-Life Examples: Electrical wires have a metal
core (conductor) with a plastic coating (insulator)
for safety.
Activity
Activity on Page 167 (Illustrating Conductivity)
Objective: Test different materials to see if they conduct electricity.
Materials: Battery, bulb, wires, and various objects (metal, plastic, wood).
Prediction & Observation: Which objects light up the bulb?
Activity
Page 168 (Tasks 4,5,6,7)
Circuit Diagrams
Why Learn? Scientists use symbols to draw circuits instead of real pictures—it makes circuits easy to
understand.
Example: Instead of drawing a real battery and bulb, we use:
Battery: 🔋
Bulb: 💡
Wire: ➖
Circuit Symbols
Activity
Page 170 (Tasks 1,2)
Comparing Circuits on Simulator
Comparing Circuits on a Simulator
Use PhET Simulator to create different circuits and compare their behavior.
Link: PhET Circuit Construction Kit
Activity
Page 170-171 (Tasks 3,4,5)
Current in Series Circuits
Definition: A series circuit has only one path for electricity to flow.
Example: A string of old Christmas lights—if one bulb breaks, they all go off!
Key Idea: The current is the same at all points in a series circuit.
Electricity Flow: Water Tank Analogy
Explaining Electricity Flow with a Water Tank Analogy
Electricity behaves like water flowing through pipes.
– Voltage = Water Pressure (More voltage, stronger push).
– Current = Flow of Water (More current, more electrons moving).
– Resistance = Narrow Pipes (Higher resistance makes it harder for water/electricity to flow).
Measuring Electric Current
Instrument Used:
AmmeterUnit: Ampere (A)
How to Measure: Connect the ammeter in series with the circuit.
How to Change Current in a Circuit
Activity
Page 173-174 (Tasks 1,2)
Keyword Learning Activity
https://crosswordlabs.com/view/electricity-3374
Lab Project
Project instruction has already been uploaded to
your Google Classroom.
End of Chapter Review
Lets work on some questions!
Quiz Competition
Lets find out who is the best!
End of Stage Review
Lets say “bey-bye” to physics!
The End
The end of chapter assessment is coming soon!