Electrical wires 0 Overview Connecting to the Curriculum Marking Student Responses Further Resources This task is about what you know about electrical wires. Question 1Change answer This diagram shows some electrical wires. a) What type of material is the colour coating around the wires made of? This diagram shows some electrical wires. a) What type of material is the colour coating around the wires made of? Why is it made of this material? Question 1Change answer b) Why are the coatings of the wires different colours? b) Why are the coatings of the wires different colours? Question 1Change answer c) What material is the wire made of? c) What material is the wire made of? Why is it made of this material? Level: 3 Curriculum info: Science, Knowledge, Physical World Keywords: physics concepts, electricity, wires, conductors, insulators Description of task: For this task students look at a diagram showing household electrical wires and then answer some questions about these. Making Better Sense: Circuits Answers/responses: Y7 (03/2002) a) i) ii) plastic/rubber Any 1 of: Because it/plastic doesn't conduct (electricity). Plastic is an insulator. moderate moderate b) Any 1 of: So you can tell the different wires apart. Because the wires don't all do the same function. easy c) i) ii) metal/copper/iron/aluminium Because it/metal conducts electricity. difficult difficult Salt and pepper Static electricity investigation Draw the circuit diagram Reading and drawing circuit diagrams Circuit diagrams Turn on the light What is wrong? Parallel and series How a torch works Bright lights Circuit diagrams II Keeping safe with electricity Generating electricity from fruit Lighting Wind farms Removing bulbs
