: Batteries
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47k |
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Resources: Torch; 2 good batteries labelled A and D; 2 flat batteries labelled B and C. | ||||
Questions
/ instructions: |
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% responses | ||||
y4 |
y8 |
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1. Put a circle around the picture which shows the best way to make the light work. Chose correct option |
73 |
92 |
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Why did you choose this way? Explanation:
circuit, electricity flow, + to -ve |
9 44 47 |
41 38 21 |
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2.
Now use the torch to find out which of the 4 batteries still work and
which ones are flat. Write the letters of the batteries below. All 4 batteries correctly classified |
12
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11 |
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Commentary: The results for question 2 are rather misleading. Some flat batteries regained significant charge, confusing the results. Many students said both batteries were good if they produced any light, which could happen even if one battery was flat. However, many students did not find the correct logic for this part of the task. |