The flashcards below were created by user
andrew_johnstone
on FreezingBlue Flashcards.
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electricity
- electrons and their movements
- used to power homes and everything else
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static charge
- electricity that isn't in a circuit
- lightning is an example
- charging by friction, contact and induction
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charging by friction
- the use of friction to change the charges on two objects by rubbing them together
- higher electrostatic=higher pull on electrons
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electrostatic series
a list of items in the order in which they hold onto electrons
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insulator
- a material that doesn't conduct electricity well
- opposite of conductor
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conductor
- a material that conducts electricity well
- opposite of insulator
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semiconductor
- something that is ok at conducting electricity
- eg. silicon
- useful for electronics
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ground
- an object that neutralizes other objects
- eg. the ground!
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electroscope
- a device used for measuring charge
- metal leaf and pith ball
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charging by contact
- touching two objects with different charges together
- equilibrium created, both objects gain mild charge
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laws of electric charges
- same charges repel
- different charges attract
- neutral loves everyone
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induced charge separation
when electrons move around in an object because another charged object is in the vicinity
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ion
- a charged atom
- kinda simple
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lightning rod
- rod used to stop electrocution of buildings
- usually large
- conducts electricity to ground
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electrostatic precipitator
- used to catch dust particles through charges
- especially in factories and chimneys of large buildings
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van de graaff generator
- creates charges through friction
- used to accelerate particles
- really awesome!
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radiation dosimeter
- a device for measuring radiation by detecting charges
- helpful for people who get radiation exposure
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