5.1 - 5.2
As long as a power source is connected.
What is an electromagnet that creates a magnetic force?
a device that's used to detect and measure small electric current
what is a galvanometer
a generator transforms these two types of energy
what is mechanical to electrical energy?
an object that is positively charged
what has more protons than electrons?
Iron filings can be used to show
what is a magnetic field?
what will not be attracted to a magnet
what is a copper?
the energy that a dc battery provides
what is potential energy?
the output of a generator is
what is less than the input energy?
the force between two electrons
what is repulsive?
the number of poles all magnets have
what is two?
An electric current
what is the flow of charged particles?
a single path for current is present in this type of circuit
what is a series circuit
batteries produce_______and generator make______
what are dc and ac?
the property of a wire increases when it is made thinner
what is resistance?
a transformer between utility wires and your house does
what is the decreasing of voltage?
a measure of energy for an amount of charge
what is voltage?
In a parallel circuit, all devices maintain the same amount of what?
what is a voltage
an electrical device that changes the voltage of alternating current is called
what is a transformer?
the unit of electrical energy sold by electric companies
what is kilowatt-hour?
the energy of transformation that occurs in an electric motor
what is electrical to kinetic?
a material that is a good electrical insulator
what is a poor conductor?
if one light bulb burns out in a parallel circuit the other bulb??
what is stays the same?
what is the name of an electrical device that turns off a circuit when the circuit becomes overloaded
what is a circuit breaker?
This surrounds electric charges that cause them to affect each other though they are not touching
what is an electric field?
this prevents most charged particles from the sun from hitting the earth
what is Earth's magnetic field?