Waves Flashcards
(18 cards)
EM waves are ______ waves
transverse
Frequency increases/decreasesf from radio to gamma rays?
increases
Wavelength increases/decreases from radio to gamma rays
decreases
What are transverse waves
a wave that oscillates perpendicularly to the direction of the wave’s direction
What are londitudinal waves
a wave that oscillates parallel to the direction of the wave’s direction
What are mechanical waves
waves that need particles to travel
What are electromagnetic waves
you don’t need particles to travel
examples of mechanical waves
sound, water
P sesmic waves
Londitudinal waves caused by earthquakes, fast moving + can travel through liquids + solids
S seismic waves
Transverse
Slower moving than P waves
Travel through solids only
examples of transverse waves
ocean, light, microwaves, radiowaves, s seismic waves
examples of longditudinal waves
sound, p seismic
what is wavelength
the distance from a point on one wave cycle to the quvalent point on the adjacent wave cycle
law of reflection
aangle of reflection = angle of incedence
what speed does light travel at
300,000 km/s
How do x-rays work
x rays pass through soft tissue
x rays absorbed by bone
transmitted x rays create an image
wave equation
speed = frequency x wavelength
