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Related Flashcards
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Cards In This Set
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*Attraction and Repulsion*When polythene is rubbed with a duster (1) move from the (2) to the (3) leaving the (4) negatively charged and the (5) positively charged.
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(1) electrons(2) duster(3) polythene(4) polythene(5) duster
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*Attraction and Repulsion*When acetate is rubbed with a duster (1) move from the (2) to the (3) leaving the (4) negatively charged and the (5) positively charged.
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(1) electrons(2) acetate(3) duster(4) duster(5) acetate
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*Attraction and Repulsion*If two charged objects are brought together with the same type of charge, what will happen?
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They will repel.
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*Attraction and Repulsion*If two charged objects are brought together with the opposite type of charge, what will happen?
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They will attract.
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*Attraction and Repulsion*If two charged objects are brought together with one charged and the other not, what will happen?
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They will attract.
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*Applications*What are the 4 steps involved in photocopying?
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1. The image of the document is projected onto a positively charged copying plate.2. Where the light falls onto the plate, the electrical charge leaks away.3. Negatively charged black toner particles are attracted to the remaining positive areas.4. Paper is placed over the copying plate, toner is transferred to the paper and heated to make it stick.
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*Applications*What are the 4 steps involved in electrostatic precipitators?
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 1. Smoke particles pick up a negative charge as they pass through the metal grid.2. Smoke particles are attracted to the positively charged collecting plates.3. Collecting plates are knocked to remove the smoke particles,4. Smoke particles gather below the plates. |
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*Dangers of Static Electricity and Prevention*How can you help prevent lightning striking tall objects?
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By installing lightning conductors.
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*Dangers of Static Electricity and Prevention*How can you help prevent explosions at petrol stations?
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Grounding or earthing devices.
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