AL HUKAMAA INTERNATIONAL SCHOOL, JEDDAH PROJECT BASED LEARNING: GRADE 9 PROJECT TITLE: ELECTRICAL CIRCUIT PROJECT OVERVIEW Focuses on designing, building, and analyzing basic electrical circuits. It provides hands-on experience with fundamental electrical components like resistors, bulbs, switches, and batteries. The goal is to understand how electricity flows through different types of circuits (series and parallel), observe the effect of different components on current and voltage, and learn about practical applications in everyday life. Students will construct both series and parallel circuits and explore how to control the flow of electricity. OBJECTIVES • Understand the Basics of Electrical Circuits: Learn about circuit components (resistor, bulb, switch, and battery) and their functions. • Build Simple Electrical Circuits: Construct both series and parallel circuits using common components. • Measure Current and Voltage: Use a multimeter to measure current and voltage across different parts of the circuit. • Analyze Circuit Behavior: Observe how different components affect current flow in series and parallel circuits. • Apply Circuit Theory to Real-Life Situations: Recognize how circuits are used in realworld applications like lighting, electronics, and appliances. • Develop Problem-Solving Skills: Troubleshoot and fix circuit problems to ensure correct functioning. REQUIRMENTS 1. Battery (9V or 6V) – Provides electrical power. 2. Bulbs (Small LED bulbs) – Acts as the load in the circuit. 3. Resistors (Various values) – Controls the amount of current flowing through the circuit. 4. Switches – To open and close the circuit. 5. Wires (Copper or insulated) – To connect all components. 6. Multimeter – For measuring current, voltage, and resistance. 7. Battery holder – To safely hold the battery in place. 8. Circuit diagram paper – For planning your circuit before assembly. PROJECT INSTRUCTIONS 1.Research and Understand the Components: • Study the function of each circuit component and how they interact in a circuit (Battery, Resistor, Switch, Bulb). • Understand Ohm’s Law (V = I * R), which relates voltage, current, and resistance. 2.Circuit Design: • Start by designing a simple series circuit where the battery, switch, resistor, and bulb are connected in a line.Draw the circuit diagram. • Next, design a parallel circuit with multiple branches to show how the current can flow through different paths. 3.Build the Circuits: • Assemble the components on the breadboard or circuit board according to your design. • For the series circuit: Connect the battery to the switch, then to the resistor, and finally the bulb in a single path. • For the parallel circuit: Connect the battery to the switch, then split the circuit to connect both the bulb and resistor in parallel. 4.Testing: • Use the multimeter to measure the current through the circuit and the voltage across each component. • Observe the behavior of the bulb in both circuits. In a series circuit, the brightness may decrease if more components are added. In a parallel circuit, the bulbs should stay at the same brightness regardless of how many are added. 5.Troubleshooting: • If the circuit does not work, check all connections to ensure they are correct. • Verify that the switch works and that the battery is providing power. • Check the resistor value and ensure it is appropriate for the desired current. 6.Analysis and Conclusion: • Compare the results of the series and parallel circuits. How does the current and voltage behave differently in each? • Discuss the practical applications of each type of circuit (e.g., series circuits for simple devices, parallel circuits for household wiring). RESOURCES https://www.youtube.com/watch?v=3BxcO2XHRoY https://www.youtube.com/watch?v=soxZTWnKxjo Project submission date: 5-03-2025 Teacher name: Meera Note: 1. Project must not be sent as a message. (If sent it will not be accepted). 2. No project will be accepted after the due date.
