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Transcript 
Can you spell
the following words
correctly in the back
of your book?
Indikater, alcali,
litmas, newtral.
Do now
Electricity
Aims of the lesson
• To practise drawing circuit diagrams
• To learn how to measure current in a circuit
• To think about the current in a simple series
circuit
Electrical symbols
?
Filament lamp
?
+
-
Cell (NOT battery)
+
-
?
Battery (more than one cell)
?
Switch (open)
?
Power supply
?
Ammeter (used to measure current)
?
Voltmeter (used to measure voltage)
?
Electric motor
?
Resistor
?
Cowboy on a bike!
Drawing circuit diagrams
Can you stick the sheet in
your book and do question 2
(NOT question 1) for
homework due next lesson.
Use a pencil and ruler
What is electricity?
cell
☺
☺
☺
energy
☺
electron
☺
☺
☺
☺
lamp
☺
☺
☺
Measuring current using an ammeter
Mi nombre es Antonio, Soy
un ammeter.
Measuring current using an ammeter
Can you do the sheet
“Using an ammeter”
Don’t forget to stick
it in your book first!
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