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electricity chapter 10
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electricity
electrons and their movements
used to power homes and everything else
static charge
electricity that isn't in a circuit
lightning is an example
charging by friction, contact and induction
charging by friction
the use of friction to change the charges on two objects by rubbing them together
higher electrostatic=higher pull on electrons
electrostatic series
a list of items in the order in which they hold onto electrons
insulator
a material that doesn't conduct electricity well
opposite of conductor
conductor
a material that conducts electricity well
opposite of insulator
semiconductor
something that is ok at conducting electricity
eg. silicon
useful for electronics
ground
an object that neutralizes other objects
eg. the ground!
electroscope
a device used for measuring charge
metal leaf and pith ball
charging by contact
touching two objects with different charges together
equilibrium created, both objects gain mild charge
laws of electric charges
same charges repel
different charges attract
neutral loves everyone
induced charge separation
when electrons move around in an object because another charged object is in the vicinity
ion
a charged atom
kinda simple
lightning rod
rod used to stop electrocution of buildings
usually large
conducts electricity to ground
electrostatic precipitator
used to catch dust particles through charges
especially in factories and chimneys of large buildings
van de graaff generator
creates charges through friction
used to accelerate particles
really awesome!
radiation dosimeter
a device for measuring radiation by detecting charges
helpful for people who get radiation exposure
Author
andrew_johnstone
ID
240758
Card Set
electricity chapter 10
Description
glossary terms for chapter 10
Updated
10/15/2013, 3:24:04 PM
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