Column 1
The number of vibrations that occur per second
Frequency
A substance that makes possible the transfer of energy from one location to another, especially through waves
Medium
= wave speed / frequency
Formula for Wavelength
Combination of waves where crests of one wave
overlap troughs of another, resulting in a wave of decreased amplitude When two waves meet with their crest of one wave
and the trough of the second wave cancel each other out
Destructive interference
A mass hung from a fixed support so that it is able
To swing freely under the influence of gravity
Pendulum
Distance from equilibrium to crest and/or distance from equilibrium to trough
Amplitude
Highest point of a wave
Crest
Time it takes for a complete cycle of back-and-forth or up-down motion
Period
= wavelength x frequency
Formula for wave speed
The positions on a standing
wave where the largest
amplitude occurs
Antinode
Addition of two or more waves when wave crests overlap to produce a resulting wave of increased amplitude when two waves meet their crests reinforce each other
Constructive interference
The point on a transverse wave that is equidistant between the crest and the trough
Equilibrium
= wave speed / wavelength
= 1 / period
Formula for Frequency
Wave in which parts of the wave
remain stationary and the wave
appears to not be traveling
standing wave
Trough
A disturbance or variation that transfers energy progressively from point to point in a medium
Wave
A frequency of one cycle per second is
1 _______ (1 Hz)
Hertz
Pattern formed by the overlapping of two or more waves that arrive in a region at the same time
Interference pattern
An outbreak of disorder; to disturb
disturbance
= 1 / Frequency
Formula for period
An increase in the measured frequency of light from an approaching source; increase in frequency
Blue shift
The distance between two successive points in a wave
Wavelength
Change in frequency of a wave due to the motion of the source or of the receiver
Doppler effect
Decrease in the measure of frequency of light
(or other radiation) from a receding source
Any part of a wave that stays
stationary
Node