Static electricity Flashcards
When plastic is charged by rubbing it with a cloth…
It can attract small pieces of paper.
A PC monitor is usually covered in dust because…
The dust is attracted by static charges on the monitor.
A piece of copper does not get charged when rubbed with a cloth because…
Copper is a conductor.
When a piece of plastic becomes positively charged it has…
Lost electrons.
When a piece of plastic becomes negatively charged it has…
Gained electrons.
When two polythene rods with the same charge are brought near each other they…
Repel.
If two objects attract each other, what must they have?
opposite charges.
When you walk across a nylon carpet, you become negatively charged. When you then touch a metal handle you receive a shock because…
Electrons jump from you to the handle.
When refuelling an aeroplane, to avoid a spark caused by a build-up of static charge they must…
The refuelling tanker and the aeroplane are both earthed.
Atoms that have become charged are…
Atoms or molecules that become charged are ions.
How can you tell if an object is charged?
You can do this by seeing if it repels another charged object. This is because charged objects will also attract small uncharged objects.
