Atoms
What is the smallest piece of an element called?
atom
What causes static electricity?
electrons jumping from one place to another
What is a flow of electrons called?
current
Electricity moving in loops creates what?
magnetic field
2 poles of magnet are?
north and south
What is the charge of a neutron?
neutral
neutral
For a circuit to work, what important part must it have?
battery (source of energy)
A magnet moving through a material like copper creates what?
electrical current
Opposite poles of magnets attract or repel?
attract
What is the charge of a proton?
positive
What kinds of actions cause charges to build up on an object?
raindrops rubbing together, rubbing balloon on hair, ...
Circuits that are made with only one path connecting the negative side of a battery to the positive side of a battery are called what?
Series Circuit
A magnet made from electricity is called what?
electromagnet
Why does a compass work?
The compass is a magnet, earth is a magnet, the compass orients itself so that its north pole is attracted to the north pole of the earth
What is the charge of an electron?
negative
Like charges attract or repel
repel
Circuits that are made with only multiple paths connecting the negative side of a battery to the positive side of a battery are called what?
Parallel circuit
One useful application of electramagnet?
lift cars, trains, mri...
What are the molecules of a ferromagnetic substance called?
dipoles
What is the center of an atom called?
nucleus
The bottom of a cloud develops what charge before a lightening strike?
negative
A circuit with an unintentional path of low resistance that causes circuit not to work as designed?
Short circuit
What is one reason an electromagnet is better than a regular magnet?
you can turn it off and on.
In a temporary magnet, what must be aligned to make the material magnetic?
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