Presentation on theme: "Design a switch for a circuit What are the parts needed to make a circuit?"— Presentation transcript:
Design a switch for a circuit What are the parts needed to make a circuit?
First 2 slides only: http://www.bbc.co.uk/bitesize/ks2/science/ph ysical_processes/electrical_circuits/read/1/http://www.bbc.co.uk/bitesize/ks2/science/ph ysical_processes/electrical_circuits/read/1/ http://www.myschoolhouse.com/courses/O/1/ 68.asphttp://www.myschoolhouse.com/courses/O/1/ 68.asp http://www.bbc.co.uk/bitesize/ks2/science/phy sical_processes/electrical_circuits/play/http://www.bbc.co.uk/bitesize/ks2/science/phy sical_processes/electrical_circuits/play/ Go to next slide to answer BCR question BY YOURSELF on notebook paper.
Circuit BCR What do all circuits need to work? In your response be sure to include: Explain the 3 things all circuits require. Tell the job that each item does in the circuit. SAMPLE ANSWER Circuits need a power source, a load or resistor, wire and a switch (optional) to work. The power source supplies the force or energy needed to get the electrons flowing. The load or resistor, such as a light, shows us that the circuit is working. The wire carries the current through the circuit. The switch is used to turn the circuit on & off. (optional) 3 pts. possible
You are the Engineers! Instructions: 1. Your group needs to design a system that will turn a light on and off in the hallway of a new office building. 2. Build a working circuit with just a battery, wire and a bulb. 3. Next, add a switch in such a way that the switch turns the bulb on and off. 4. Draw and describe your circuits and switch on notebook paper. 5. Discuss your designs and experiences with the class.