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Friday, January 18, 2008

y11 Triple Sciecnce

Electro Statics


Explain the following:

1) Nylon clothing crackles as you undress.
2) In dry weather, people walking on clean carpets may a shock if they touch a radiator
3) Passengers sliding off a car seat on to the ground sometimes get a shock
4) Petrol road tankers usually have a length of metal chain hanging down to touch the ground.
5) A rubbed balloon will stick to the wall for some time
6) A mirror or window polished by a dry cloth on a dry day may become dusty.
7) As sellotape is pulled of a roll it is attracted to your hand.
8) When spraying an object with paint, less paint is wasted if the object is charged
9) A TV screen becomes dusty
10) The amount of smoke leaving a factory can be reduced by placing a charged object in a chimney

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