| Misconception |
Discussion of the problem |
Possible Activities |
| Positively charged objects have gained protons, rather than being deficient in electrons. |
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| Electrons which are lost by an object are really lost - disappear! (no conservation of charge). |
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| All atoms are charged. |
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| A charged object can only attract other charged objects. |
Induced charge needs to be explained and demonstrated |
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| The electrostatic force between two charged objects is independent of the distance between them. |
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Practical with electroscope and charged rod |
| Gravitational forces are stronger than electrostatic forces. |
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Batteries have current inside them - waiting to burst out!.
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Speak of batteries having stored chemical energy |
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| Mains sockets have current inside them - waiting to get out (hence child socket covers to stop it 'leaking out'). |
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| A battery gives out a certain current - and that then splits up in a parallel circuit |
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| A battery gives out a certain current but if the circuit has lots of resistance that current will get smaller as it flows round the circuit |
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| Voltage flows through components |
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| Current is across components |
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| Voltage shares between the strands of a parallel circuit |
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| All bulbs have the same resistance |
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