Flashcards in Electricity Deck (38):
changing a _________ field can cause _______ charges to move in a wire.
__________ electric charge produces a magnetic field.
This relationship exists because electric force and magnetic force are really part of the same force.
________ use an electromagnet to change _______ ______ into electrical energy
Generators, kinetic energy
In a generator electrical current is produced as the coil of _____ rotates between the poles of a permanent magnet.
In a generator, as the coil rotates it _____ the direction of the _______ as it is repelled by the like charge of the magnet.
In the US current is produced at a rate of ____ times per second
_______ current occurs in your outlets. This is the flipping of the coil in the generator that changes the direction of the current twice each cycle, ______ cycles per second (60 Heartz, Hz)
Alternating (AC), 60
Batteries use _______ current, it only travels in one direction.
Most power plants work on _______ concepts
In power plants, a _____moves and turns the coil in the generator converting ______ ______ to electrical current in the generator.
turbine, kinetic energy (KE)
_______ methods are used to make the turbine move.
most power plants work by _______ _______ to steam and the steam turns the turbine.
Six renewable resources are:
The nucleus of an atom contains ______ with a _____ charge and ______ with a ______ charge
______ are located outside the nucleus and are responsible for ____________
In an electrical charge electrons are _______
Like charges _____ each other
opposite charges ______ each other
Electrical current is the movement of ________ or charges in a ______ direction
Electrical current is measured in _____
electrical current flows from _____ voltage to _____ voltage (force)
electrical current flows from the ______ side of the battery to ______
_________ allow electric current
________ don't allow current to flow well
closed path that electric current follows
If any break in the circuit occurs electricity _______ flowing, called an ______ _______
stops, open circuit
a circuit contains these 3 things
1. a voltage source (battery)
2. wire (conductor)
2 types of circuits are
A chain of circuits in line is a _____ circuit
in a series circuit, if one goes out the others _____ ____
in a series circuit there is ____ path for electricity to follow
circuits next to each other, side by side is a ______ circuit
in a parallel circuit, if one goes out the others ____ _____
in a parallel circuit there is _____ paths for electricity to follow
Running electricity through a magnet creates a ______ _______
In electromagnetism the coiled wire is called a ______