Electricity Flashcards
changing a _________ field can cause _______ charges to move in a wire.
magnetic, electric
__________ electric charge produces a magnetic field.
moving
This relationship exists because electric force and magnetic force are really part of the same force.
Electromagnetic 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.
wire
In a generator, as the coil rotates it _____ the direction of the _______ as it is repelled by the like charge of the magnet.
changes, current
In the US current is produced at a rate of ____ times per second
60
_______ 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.
direct (DC)
Most power plants work on _______ concepts
similar
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.
different
most power plants work by _______ _______ to steam and the steam turns the turbine.
heating water
Six renewable resources are:
- hydro
- solar
- geothermal
- wind
- tidal
- biomass
The nucleus of an atom contains ______ with a _____ charge and ______ with a ______ charge
protons, positive
neutrons, neutral
