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8th Grade-Ch. 2 Electricity
an increase in voltage causes a greater flow of
the greater this is, the less current there is for a given voltage.
type of circuit where different parts of the circuit are on separate branches
safety device that uses an electromagnet to shut off a circuit when the current becomes too great.
circuit is designed to carry electric currents from a short directly to Earth.
created by Ben Franklin to carry charge through a wire to the Earth during a storm.
causes the current to flow
battery & generator
2 examples of voltage sources
path of least resistance
an electric current will always travel on ________
type of circuit where all of the bulbs will become dimmer as more bulbs are added
a connection that allows the current to take an unintended path.
decrease the chance of serious injury if you become part of a circuit.
disadvantage is that they can only be used once.
stay low and dry
best way to protect yourself if outside during a lightning storm.
effect on the body is to stop the heart and cause burns.
how houses are wired
rate at which energy is transformed from one form to another
voltage X current
unit of power
power X time
unit of energy