Approach: Station
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Focus:
Connecting electrical
circuits. |
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108k |
Resources:
Board with two switches,
battery and bulb; 6 wires with alligator clips. |
Questions
/ instructions:
Read all
the instructions before you start doing this task.
In this activity you are to make a switch board work so that the
switches light up a light bulb in three different ways. Imagine
you are making a switch board to be used for a competition. Each
switch is for a different person. |
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%
responses
2000 ('96) |
y8
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1.
Use the wires to join one switch to the battery and the light to make
the light glow.
The light should only glow when you hold down that one switch. |
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2.
Draw on the diagram where the wires go. You don't need to draw the clips.
If you have trouble with the drawing, ask the teacher to help. |
wired correctly
battery, light and one switch in service |
47
(48) |
3. In the competition,
two people are going to help each other. You need to join the switches
to the light so it lights up when one or the other switch is pressed.
Test your switch
board by pressing one switch at a time.
The light should light up when you press each switch. |
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4.
Draw on the diagram where the wires go. You don't need to draw the clips.
If you have trouble with the drawing, ask the teacher to help. |
wired
correctly
two switches in parallel, together in series with battery and bulb
|
16
(8) |
5. In the competition,
two people have to work together. Join the switches to the light so
it lights up only when both of the switches are pressed at the same
time.
Test your switch
board by pressing both switches at the same time. The light should light
up only when you press both switches. |
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6.
Draw on the diagram where the wires go. You don't need to draw the clips.
If you have trouble with the drawing, ask the teacher to help. |
wired
correctly
all components in series |
(38) |
Commentary:
Unfortunately, the third section (instructions 5 and 6) was accidentally
omitted for 2000. On the other two components, the 2000 performed similarly
to the 1996 students on the first component, but better on the second. |