End Big Question: 03/07/202 How do we measure electricity? 0 To - - PowerPoint PPT Presentation

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End Big Question: 03/07/202 How do we measure electricity? 0 To - - PowerPoint PPT Presentation

Mar 19, 2023 179 likes •304 views

Lets Get Started Activity: Are these objects conductor or insulators of electricity? What is your evidence? Stretch it : What about heat? Are conductors of electricity always conductors of heat? What is the

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SLIDE 1

Stretch it:

  • What about heat?
  • Are conductors of electricity always

conductors of heat?

  • What is the evidence?

Let’s Get Started…

End

Activity:

  • Are these
  • bjects

conductor or insulators of electricity?

  • What is your

evidence?

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SLIDE 2

To develop knowledge by stating the meaning of complete circuit, ammeter and current. To secure understanding by using the idea of a complete circuit to test conduction of electricity To achieve excellence by constructing circuits from instructions in a circuit diagram.

03/07/202

Big Question: How do we measure electricity?

Key Word: circuit – a complete and closed path around which a circulating electric current can flow

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SLIDE 3

Prepare Agree L.O.s New Info Apply Construct Review

Can you name any of these symbols?

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SLIDE 4

Prepare Agree L.O.s New Info Apply Construct Review

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SLIDE 5

Prepare Agree L.O.s New Info Apply Construct Review

  • The symbols are put together into

circuit diagrams, e.g.

Note – straight lines! A ruler and pencil must be used!

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SLIDE 6

Prepare Agree L.O.s New Info Apply Construct Review

  • Draw circuit diagrams for these circuits

A circuit with 2 cells, a switch and a motor

  • You must use a pencil and a

ruler!!!!

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SLIDE 7

Prepare Agree L.O.s New Info Apply Construct Review Learning Check

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SLIDE 8

Prepare Agree L.O.s New Info Apply Construct Review

Measuring current

  • Current is a movement of

electrons around a circuit.

  • The more electrons (charge)

the bigger the current.

  • It is measured with an

ammeter

  • It is measured in Amps

which have the symbol A

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SLIDE 9

Prepare Agree L.O.s New Info Apply Construct Review

Rules for making circuits

  • If the circuit does not work then check:

a) Matches diagram? b) Short circuit? c) Swap bulb. d) Gently move. e) Swap wires one at a time

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SLIDE 10

Prepare Agree L.O.s New Info Apply Construct Review

Practical

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SLIDE 11

Prepare Agree L.O.s New Info Apply Construct Review

Review – Quick Check

Match the pictures and the diagrams

a) b) c) d) 1) 2) 3) 4)

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SLIDE 12

Prepare Agree L.O.s New Info Apply Construct Review

Review – Quick Check

Match the pictures and the diagrams

a) b) c) d) 1) 2) 3) 4)