C9 C16 C24 C73 C79 C93 Flashcards
Medium
Any substance that waves move through
Mechanical waves
Waves that transfer energy through matter
Transverse wave
The direction in which the waves travel is perpendicular
Longitudinal wave
A wave that travels in the same direction as the disturbance
Crest
Highest point of a wave
Trough
Lowest point of a wave
Amplitude
A distance between a line through the middle of a wave and a crest or trough
Wavelength
The distance from one crest to the next
Frequency
How often waves occur
Reflection
The bouncing back of a wave after it strikes a barrier
Refraction
Bending of a wave as it enters a new medium
Diffraction
The spreading out of waves through an opening
Interference
Combining of waves
Electromagnetic wave
A disturbance that transfers energy through a field
Radiation
Energy that moves in the form of EM waves
Electromagnetic spectrum
The range of all EM frequencies
Radio waves
EM waves that have the longest wavelengths, the lowest frequencies, and the lowest energies
Microwaves
EM waves with shorter wavelengths, higher frequencies, and higher energy than other radio waves
Visible light
The part of the EM spectrum that human eyes can see
Infrared light
Part of the electromagnetic spectrum that consists of waves with frequencies between those of microwaves and visible lights
Ultraviolet light
The part of the electromagnetic spectrum that consists of waves with frequencies higher than those of visible light and lower than those of X-rays
X-rays
The part of the electromagnetic spectrum that consists of waves with high frequencies and high energy
Gamma rays
Part of the electromagnetic spectrum that consists of waves with the highest frequencies
Transmission
Passage of a wave through a medium