Theory
Static Electricity -
the accumulation of charges - i.e.
protons, electrons. For example, when you rub your feet along the
carpet you are rubbing off the negatively charged electrons and gaining a
fixed positive charge on your body. When you come into contact with
another object that is grounded, the electricity goes from where there is
a lot (ground) to where there is a lack (you) and you get an electric shock.
Kinetic Electricity -
the motion of a collection of charges -
i.e. protons, electron
Circuit -
the closed loop traveling path of electrons
Voltage -
electrical pressure (electromotive force). Think of
it as the 'push' or 'kick 'to the electrons flowing in the circuit.
Conductor -
a material through which energy (i.e. heat, electricity)
can flow easily
Insulator -
a material through which the flow of energy (i.e.
heat, electricity) is restricted.
Ground -
an electrical connection to the electrically neutral
earth
Permanent Magnet -
either a metal extracted from the earth already
magnetized, such as magnetite, or a metal that becomes magnetic in the
presence of a strong magnetic field.
Electromagnet -
a core of metal which becomes magnetic when there
is a wire with current wrapped about it. The stronger the current and the
more loops of the wire, the stronger the magnet becomes.
Induction -
a moving magnetic field near a loop of wire can
induce an electric current in the wire. When a current moves in a loop
about a metal core, a magnet is induced.
Piezoelectric -
a material in which voltage is induced when under
stress, such as when it is bent out of shape. The strip also changes its
dimensions
when voltage is applied to it. To Main Page
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