static electricity flashcards

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Explain how you can use a charged comb to pick up small pieces of paper?
electrons have been transferred from the comb to the cloth. the comb looses electrons to he paper. the comb now has fewer electrons than protons so it has a positive charge
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explain how lightening happens?
a charge of static electricity builds up in the clouds. hen the chargge gets big enough, charge dparticles can fly threw the air. the energy released by this causes lightening and sound
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explain how electric shocks happen
a person cna build up a charge of static electricity as they mvoe around, if they then touch a door or another object they might feel a shock. this happens because electrons move to 'cancel out' the charge on the person, this is called earthing
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give two uses of static electricity
paint sprayers and pest sprays
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explain three dangers of static electricity
one danger is that lightening can damage and kill living things. another danger is it can cause electric shocks. a lastd anger is aeroplanes can explode when being refuelled due to static electricity causing a spark which could be ignited
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explain what happens when a positively charged balloon is held against a negatively and positively charged wall
this is called charging by induction. when the positively charged balloon goes against the wall the positive electrons on the wall are repelled and moved away. the negative charge left behind ( the induced charge) attracts the positive charge on the
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Other cards in this set

Card 2

Front

explain how lightening happens?

Back

a charge of static electricity builds up in the clouds. hen the chargge gets big enough, charge dparticles can fly threw the air. the energy released by this causes lightening and sound

Card 3

Front

explain how electric shocks happen

Back

Preview of the front of card 3

Card 4

Front

give two uses of static electricity

Back

Preview of the front of card 4

Card 5

Front

explain three dangers of static electricity

Back

Preview of the front of card 5
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