Electricity Flashcards
What is Electricity
a flow of electrons from place to place
What is the Current?
a continuous flow of electron , measured in ampers
What is Voltage?
the difference in electrical potential in a circuit. measured in volts
What is resistance?
opposition to the flow of a current.
What is the Ohms law?
V equals I times R
What are the different types of circuits?
Series
Parallel
Complex
What is the Series Circuit?
Only one continuous path for the electricity to travel through
What is a parallel?
multiple paths for the electricity to take
What are the factors that affect Resistance?
Diameter of the wire D up resistance down
Length of Wire L down R down
Temperature of Wire T down R down
Type of wire material
What is wavelength?
A distance from identical parts of a wave
What is the frequency?
The rate at which something occurs or repeated.
What is amplitude?
Height to rest portion
What is the polarizing filters?
90’ angles that create lines in an area
What is the Doppler Effect?
The apparent change in frequency of a wave as the source moves in relation to the observer
What is resonance?
When an object is struck by a wave that matches it’s natural frequency the object will vibrate
What is Refraction?
The bending of waves as they enter a new medium
The bending occurs due to the change in speed of the wave
Pitch
How high or low a sound seems to an observer
Depends upon frequency
How do you calculate resistance in series?
Add
What is the constant for a series ?
Current
What is the way you calculate resistance in a parallel ?
Some of respircuals
What is the constant of the parallel?
Voltage
What is the electrochemical cells?
Piece of metal sitting in an electrolyte
What is the Electrolyte?
A substance,Liquid or paste that conducts electrician current
What is the Terminal?
The part of the electrode that sticks out of the electrolyte
Electrode?
A piece of metals sitting I the electrolyte
Who was Galvani?
Was dissecting a frog on an iron table
When he touched a brass to the iron while the hook was stuck in a muscle, there was a spark where the two metals made contact
Who was Volta.
Used Galvani’s research to make the first battery
The reaction was caused by s combination of the iron railing, brass hook and salty fluids in the frogs
