Science Study Guide Ch.5: Electricity and Magnetism
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Science Study Guide Ch.5: Electricity and Magnetism
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27 Terms
a circuit that connects several objects in one complete path
a series circuit
electricity
a form of energy that involves the flow of electrical charges
a circuit that has more than one path
a parallel circuit
a material that does not allow electricity to flow through it easily
insulator
a neutral object
has the same number of positive and negative charges
positively charged
an object that has more positive charges than negative charges
a material that allows electricity to flow through it easily
conductor
negatively charged
an object that has more negative charges than positive charges
circuit
an unbroken path through which negative charges can flow
a continuous flow of negative charges through a material
current electricity
static electricity
occurs when electrical charges build up on the surface of an object
objects with the same kind of charge _______ each other
repel
objects with opposite charges _______ each other
attract
every circuit must have an ________ and _________.
unbroken path/a power source
the ends of a magnet
poles
an object that attracts certain metals
a magnet
caused when a current flows through a circuit
magnetic field
two things that use electromagnets are _______ and ______
maglev trains/microwave ovens
particles of matter can have a ________ or a negative charge
positive
magnetic field
the area around a magnet where the force of the magnet can act
produces electricity by using a coil of wire and a magnet
generator
a magnet’s magnetism is ________ at the magnet’s poles
greatest
all matter is made up of __________________
small particles with an electric charge
a temporary magnet formed when electric current flows through a wire coiled around certain metal cores
electromagnet
magnetism
the pushing or pulling force caused by a magnet
almost 200 years ago scientists discovered that electricity and _______ are related
magnetism
two ways magnets can be used to produce electricity
by moving a magnet through a coil of wire and by moving a coil of wire through a magnetic field