PHYSICS P2/SIX MARKERS

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  • Created by: Henna.M
  • Created on: 24-12-15 14:20
Marie-Nylon Carpet
Marie walks across the nylon carpet and her shoes rub against the carpet. Negative charge is transferred by friction on to Marie. Negative charge builds up on Marie. Marie touches the handle, charge flows from Marie to the filing cabinet. Charge lost
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Electrostatic precipitators
Smoke and dust particles meet at metal mesh, which is charged at 50000 v to negatively charge all particles. Charged dust particles are attracted to positively charged earthed metal plates. Smoke and dust particles removed.
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Electrostatic paint sprayer
Spray gun is charged, so every drop is charged. Each paint drop repels the others, so you get a fine spray. The object to be painted is oppositely charged to the gun, this attracts a fine spray.
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Fuelling car tanks (I)
As fuel enters the petrol tank there is a build up of charges. This creates potential difference between the tank and petrol nozzle. If the voltage becomes too great the negative charges can jump the gap causing a spark. This spark could ignite ...
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Fuelling car tanks (II)
a flammable liquid. Dangerous sparks can be avoided by connecting the charged object using a conductor. Earthing provides an easy route for static charges to travel into the ground. This means no charge can build up to give you a shock or spark.
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In the cloud
A thunder cloud contains moving ice particles. Some are negatively charged and some positively charged. The negatively charged particles move to the bottom of the cloud when the charged cloud is over the metal tower a positive charge builds up
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In the cloud (II)
on top of the metal tower as the cloud passes over. A flash of lighting travels between the cloud and the tower. This lighting is caused by a jump of electrons from the negatively charged cloud to the positively charged tower.
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Other cards in this set

Card 2

Front

Smoke and dust particles meet at metal mesh, which is charged at 50000 v to negatively charge all particles. Charged dust particles are attracted to positively charged earthed metal plates. Smoke and dust particles removed.

Back

Electrostatic precipitators

Card 3

Front

Spray gun is charged, so every drop is charged. Each paint drop repels the others, so you get a fine spray. The object to be painted is oppositely charged to the gun, this attracts a fine spray.

Back

Preview of the back of card 3

Card 4

Front

As fuel enters the petrol tank there is a build up of charges. This creates potential difference between the tank and petrol nozzle. If the voltage becomes too great the negative charges can jump the gap causing a spark. This spark could ignite ...

Back

Preview of the back of card 4

Card 5

Front

a flammable liquid. Dangerous sparks can be avoided by connecting the charged object using a conductor. Earthing provides an easy route for static charges to travel into the ground. This means no charge can build up to give you a shock or spark.

Back

Preview of the back of card 5
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