Charges
Circuits
Resistance and conversions
Generators and Motors
In the home
100
results from the buildup of electrons on an object.
static electricity
100
always flow from the negative end of a power source to the positive end
electrons
100
a property of a circuit that hinders the motion of electric charge and converts electrical energy into other forms (usually heat)
Resistance
100
observed that a magnetic compass needle would turn when placed near a wire while carrying an electric current; the stronger the current, the stronger the deflection.
Hans Christian Oersted
100
used to increase the voltage of electricity as it travels through transmission lines
Step up transformers
200
Unlike charges attract
Like charges repel
Charged objects attract uncharged (neutral) objects
Law of Charges
200
electrons are able to travel down a path uninterrupted. This allows electrical devices to receive power.
Closed circuit
200
Formula for calculating amount of resistance
ohm's law: R=V/I
200
can be constructed by coiling a wire circuit around a soft iron core
Electromagnet
200
records the total amount of electric energy (Joules) supplied to devices that are operating in your house
Power meter
300
Prevent and allow charges to move freely through them
conductors and insulators
300
the switch that turns devices on or off (completes or disrupts the flow of e-)
Control
300
The total amount of resistance in a series circuit
Rtotal=R1+R2+R3
300
Direct current
300
acts as a safety switch that can cut off all power coming into the house if the current exceeds a certain level.
Circuit breaker
400
materials that are subjected to extremely low temperatures
Usually made of metal alloys or ceramics
Used in electric generators, high-voltage power lines, and supercomputers.
Superconductors
400
circuit symbols
400
The energy of charged particles, released
when they travel from place to place
electrical energy
400
rotated by magnetic forces between the permanent magnets and the armature, which acts as an electromagnet.
DC motor
400
formula for measuring electric power
P=E/t, P=IV
500
A type of static electricity in nature
lightning
500
multiple devices can be controlled seperately on this type of circuit
parallel circuit
500
The energy that results from motion
mechanical energy
500
The only viable form of electrical grid to efficiently use renewable energy
Micro-grid
500
release harmful by-products into the atmosphere, and are non-renewable.
fuels/coal/natural gas