Waves and Sound Vocab Flashcards
(70 cards)
Waves are…
any disturbance that transfers energy through matter or space
A medium is…
a material through which waves can travel.
Waves that need a medium to travel are called
mechanical waves.
Transverse waves move…
up and down.
Points on a transverse wave are called
crests (the highest point) trough (the lowest point)
Longitudinal waves
move side to side and go back a back and forth motion
Points on a longitudinal waves are called
compressions and rarefractions
The relationship between frequency and wavelength are…
more frequency equals a decrease in wavelength
The relationship between frequency and energy are…
more frequency = more energy (tighter wave means more energy and more frequency)
The relationship between wavelength and energy is…
Shorter wavelength equals higher energy.
Electromagnetic waves…
do not need a medium to transfer energy.
Types of electromagnetic waves are…
RVMUXIWG
Radio Waves, Visible Light, Microwaves, Ultra violet light, X-rays, Infered Waves and Gamma rays.
The wavelength is the distance between
crest to crest or trough to trough
The weakest wave is…
a radio wave
The strongest waves are…
gamma waves
The distance between the peak of a wave and the midpoint is considered the…
amplitude
The number of cycles that pass in a certain time period considered the
frequency
The wave period is the…
time it takes for a certain number of cycles to pass.
Reflection is when…
a wave bounces back after striking a barrier.
Refraction is the…
bending of a wave as it changes directions
Diffraction is the…
bending of waves to pass a barrier or opening.
When two waves overlap it is called…
contsructive
Constructive waves increase…
amplitude
Destructive waves occur when…
two different crests in two different waves overlap
