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D&T Alarms

D&T Alarms. LO: To understand what switches are for and how they are used? . How many switches can you see in the classroom? . How many did you find? . You may have found: Computer switch Light switch Plugs White board switches TV switch Fire alarm switch Radio/ CD player.

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D&T Alarms

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  1. D&T Alarms • LO: To understand what switches are for and how they are used?

  2. How many switchescan you see in the classroom?

  3. How many did you find? You may have found: • Computer switch • Light switch • Plugs • White board switches • TV switch • Fire alarm switch • Radio/ CD player

  4. Where do we find switches?

  5. How many other switches can you think of…….. Working in teams who can think of the most – brainstorm your ideas!

  6. What do you think this is?

  7. Why do we have switches? • What are they for? • Why not leave things on all of the time?

  8. Switches • Are used to turn things on and off • Need to make a connection to work • Switch is either open (off) or closed (on) • Need to form part of a circuit

  9. Click this link to see a working switch…… • http://www.schoolscience.co.uk/content/3/physics/circuits/circh1pg1.html

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