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3 cards from this section. Quick, good the night before a test.
What is the purpose of an electroscope?
What tool did we use in class for this?
What happens to foil strips in an electroscope when charged?
Think about the type of charge they receive.
What does an electroscope detect?
Think about what we learned about charges.
True or False: Earthing is used to prevent electric shocks.
Consider how we ensure safety in electrical systems.
Sketch and explain an experiment showing how two negatively charged balloons behave when brought near each other. What does this tell you about like charges?
Refer back to the balloon activity we did in class.
Why is grounding important in electrical safety? Discuss the potential dangers of unit not being grounded.
Consider what happens during a thunderstorm.
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