20048 AC Science Year 6 Physical sciences
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Connecting circuits<br />
Electrical circuits can be connected in two ways:<br />
Series<br />
In a series circuit , the current flows along a<br />
single path from the battery, throu gh each<br />
component in turn and back to the battery.<br />
Parallel<br />
The current in a parallel circuit can flow<br />
along more than one path and through the<br />
components in each branch of the circuit at<br />
the same time.<br />
You are going to investigate both types of circuit.<br />
You will need:<br />
• 2 batteries • 4 light globes<br />
• 4 switches • 13 connecting wires<br />
What to do:<br />
• Set up each circuit as shown in the diagrams.<br />
+VB<br />
••t-------9..-' ..·-<br />
-VB<br />
+vs<br />
- battery<br />
-vs<br />
® lightglobe<br />
+VB<br />
e--, openswitch<br />
e e<br />
closed switch<br />
-<br />
·----------,<br />
<br />
0<br />
0 In the table, record:<br />
(a) what you think will happen to each globe when each switch is opened and closed<br />
(b) what happened to each globe when each switch was opened and closed.<br />
Switch (a) Prediction (b) Results<br />
I<br />
2<br />
3<br />
©R.I.C. Publications<br />
Low Resolution Images<br />
Display Copy<br />
4<br />
f) Write either series or parallel to indicate how each switch is connected.<br />
Switch I _________ _<br />
Switch 3 _________ _<br />
Switch 2 _________ _<br />
Switch 4 _________ _<br />
8 What can you conclude from this investigation?<br />
R.I.C. Publications ® www.ricpublications.com.au<br />
m<br />
AUSTRALIAN<br />
CURRICULUM SCIENCE (<strong>Year</strong> 6)
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