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Magnetism/Electricity Study Guide
n/a
32
Science
4th Grade
04/24/2010

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Cards

Term
A charge that does not move is called
Definition
static electricity
Term
The two kinds of charges are
Definition
positive and negative
Term
When charges are separated on objects, it is the _____________ charges that move
Definition
negative
Term
The space around a charged object where electric forces act is
Definition
electric fields
Term
The flow of charges is called
Definition
electric current
Term
A __________ is a path for electric current
Definition
circuit
Term
A ________ adds energy to a circuit. It is also called an _______________
Definition
battery: electric cell
Term
Charges move freely through ____________
Definition
conductors
Term
Charges don't move freely through ______
Definition
Insulators
Term
A __________ circuit has two or more paths for moving charges.
Definition
parrallel
Term
A _____________circuit has only one path for moving charges
Definition
series circuit
Term
A magnet attracts material made of _____ or __________
Definition
iron or steel
Term
Magnetic forces are strongest at a magnet's ___________
Definition
poles
Term
The space near a magnet where magnetic forces act is called the _________ field
Definition
magnetic
Term
When two same poles of magnets face each other they ______ and when two opposite poles of magnets face each other, they _________
Definition
repel; attract
Term
A _______ field is formed when opposite magnetic poles face each other and a ___ field is formed when same magnetic poles face each other
Definition
closed: open
Term
Three types of magnets we studied are:
Definition
conductor - bar magnet
insulator - electric magnet
registor - horseshoe magnet
Term
A flow of electric charges
Definition
electric current
Term
A path that is made for an electrical current
Definition
circuit
Term
A device that supplies energy to move charges through a circuit
Definition
electric cell
Term
A material that electric current can pass through
Definition
conductor
Term
A material that current can't pass through
Definition
insulator
Term
A material that resists the flow of current
Definition
resistor
Term
A circuit that has only one path for current
Definition
series current
Term
A circuit that has more than one path
Definition
parallel circuit
Term
Two forces come together
Definition
attract
Term
Two forces bounce away
Definition
repel
Term
The use of power to make someone do something
Definition
force
Term
An object that attracts certain materials
Definition
magnet
Term
The arranged wire wrapped around a core
Definition
electromagnet
Term
A charge that does not move (stays together)
Definition
static electricity
Term
A measure of the extra positive or negative particles
Definition
charge
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