Sound Light Elec Flashcards
Amplitude
The height of a wave from the rest position
Frequency
Number of complete waves that pass a fixed point in a given time
Refraction
The bending of waves as they enter a new medium
Doppler effect
The apparent change in frequency of a wave as the source moves in relation to the observer
Resonance
When any object is struck by a wave that matches it’s natural frequency, the object will vibrate (tuning forks and earth quake)
Pitch
How high or low a sound seems to an observer
Order of electromagnetic spectrum
Radio waves Microwaves Infrared waves Visible light Ultraviolet rays X-rays Gamma rays
Polarizing filters
Block all angles of light waves not parallel to the filter
Current
Continuous flow of electrons measured in Amps
Voltage/potential difference
The difference in electrical potential in a circuit measured in colts
Resistance
Opposition to the flow of a current measured in ohms
What is the ohms law equation
V=I•R
Series circuit
Only one continuous path for electricity to travel
Parallel circuit
Multiple paths for electricity to take
Factors affecting resistance
Diameter of a wire
Length of a wire
Temp of a wire
Type of material of a wire
Thick wire
Less resistance
Little wire
Less resistance
Hot wire
More resistance
What has more total resistance
Series circuit
What is constant in a parallel circuit
Voltage
What is constant in a series circuit
Current
Galvani
Stumbled upon electricity by dissecting frog
Volta
Used galvanis research to make first battery
First battery
Zinc, paper soaked in salt water
Electrode
Piece of metal sitting in electrolyte
Electrolyte
Substance,liquid or paste, that conducts electric current
Terminal
The part of the electrode that sticks out of the electrolyte
Battery
A combination of 2 or more electrochemical cells
Wet cell
Electrolyte is liquid
Dry cell
Electrolyte is a paste
How do u find current in a series circuit
Add all resistance then divide by given voltage
Wavelength
The distance from the identical parts of a wave
