electricty and maganetism Flashcards
what rock is naturally magnetic
lodestone
magnet created by running electric current around iron is called…
electromagnet
static is created when ___ are rubbed off
electrons
object with extra electrons have a ____ charge
negative
a statically charged item will have a _______ charge when loses the extra electrons
neutral
electric current is…
the flow is electric charge through a metal
difference between current electricity and static electricity
current elec. flows while static elec. jumps
3 required elements of static electricity
source, transfer, receiver
in series circuit adding extra bulbs will make them ___
dimmer
in a parallel circuit adding more bulbs will make them____
have no effect on the brightness
open=____
gap
closed=_____
complete and functional
circuit diagram=
drawing that represents an electrical system
receiver =
uses electricity
ohms=
amps=
v=
resistance
current
voltage
parallel advantages
reliable
efficient
parallel disadvantages
requires more materials
more complicated
forms of energy
7
examples of forms of energy
gas- chemical
ovens- thermal
lightbulb- thermal and light
law of conservation
you can’t create nor destroy energy, it can only be transformed
