Introduction
Task
By the end of this WebQuest the learners will be able to recognize the apparatus used to construct a simple circuit.
Also at the end of this lesson the learners will be able to construct a s simple circuit.
Activity 1
Make a simple circuit using the following apparatus: cell, cell holder, conducting wires with crocodile clips, torch bulb, bulb holder, switch
Process
For this task you need to follow these steps:
Step 1: Connect the cell to the cell holder, and screw the bulb into the bulb holder.
Step 2: Connect a conducting wire from one end of the cell to the open switch.
Step 3: Take another conducting wire and connect it from the open switch to one terminal of the bulb.
Step4: Connect another conducting wire from the other end of the bulb holder to the other terminal of the cell.
Step5: Close the switch and write your observation of what happens to the bulb.
Sources
Notes
Energy can be transferred in electrical systems by the movement of electric charges. Electricity is the world that we commonly use for electrical energy . Electricity can travel through wires to light up a city , it can also make small and big things work.
Circuits and current electricity
- Electric charges can be transferred from one object to another. They can jump over a gap between two objects to cause a spark or a shock. A path can be created for electric charges to move from one object to another.
- This path is called a circuit. a simple circuit consists of a source of energy such as cell, conducting wires for the electric charges to move in, and a bulb.
- The flow of electric charge in a circuit is called the electric current.
- A circuit is a system that transfers that transfers electrical energy and the cell is the energy source.
- Chemical energy from the cell is transferred to electrical energy. Electrical energy is converted to light and heat energy in the bulb.
- The cell conducting wires and the bulb work together to form a system that transfer energy.
- A circuit can be open or closed. An open circuit is one in which electric current cannot flow as the pathway for the charges to flow is not complete.
- A closed circuit is one n which electrical current is allowed t flow, it is needed to make a device work.
- A component that opens and closes circuit is called a switch.
You tube video
https:// youtu.be/ktwq4mw7nwm.
Evaluation
Use the rubric to as a guide or to evaluate your self.
|
Good (5 marks) |
Satisfactory (1 -3 marks) |
Poor (0 - 1 marks) |
|
|---|---|---|---|
| Circuit diagram | circuit is designed completely as per the specification and objective | circuit is designed but no proper specifications and only few objectives are met. | No circuit diagram, no design. |
| Simulation | effective use of simulation tool. Results are clearly presented with proper justification and analysis | Simulation results are presented, no proper analysis and justification. | No simulation results. |
|
High ( 5 marks) |
Medium (2 - 3 Marks) |
Low ( 0 -1) |
|
| Demonstration / presentation | Presentation/ explanation of the project are appropriate and well delivered | Presentation/ explanation of the project are appropriate but not well delivered | Presentation/ explanation of the project are not appropriate and not well delivered. |
| Project report |
Project report is according to the given format. Key concepts and technical aspects of the project are clearly described. |
Project report is according to the given format, but not well prepared. | Project report report is not according to the given format, and not well prepared. |
| Total | /20 |
Conclusion
In conclusion electric circuits are the basis of every electrical device, from electric light to microwave, ovens and computers. Understanding circuits helps you to use them and utilize them safely.
In this WebQuest I expected you to grasp as much information as you can on electric circuits and electric currents.
I also anticipated that you would be able to build your own electric circuits using the instructions I gave you and the links to the YouTube videos I provided.
Credits
The activity is out of 20 Marks. Check the Rubric for mark allocation