Science Flashcards
Any substance that a wave moves through
Medium
Mechanical waves
Waves that transfer energy through matter.
Transverse wave
A type of wave in which the disturbance moves at right angles, or perpendicular, to the direction in which the wave travels
Longitudinal wave
The wave that travels in the same direction of the disturbance.
Crest
Highest point in a wave
Trough
The lowest point of a wave
Amplitude
The distance between a line through the middle of a wave and a crest or trough
Wavelength
The distance from one wave crest to the very next crest
Frequency
The number of waves passing a fixed point in a certain amount time
Reflection
The bounce back of a wave after it strikes a barrier
Refraction
The bending of a wave as it crosses the boundary between two mediums at an angle other than 90 degrees
Diffraction
Spreading out of waves through an opening or around the edge of an obstacle
Interference
The meeting and 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 that have the longest wavelengths, the lowest frequencies, and the lowest energies
Microwave
EM waves with shorter wavelengths, higher frequencies, and higher energy than any other radio waves
Visible light
Part of the EM spectrum that human eyes can see
Infrared light
EM frequencies
Ultraviolet light
Frequencies above those of visible light and partially below those of x-rays
X-rays
The part of the EM spectrum that consists of waves with high frequencies and high energies
Gamma Rays
Part of the EM spectrum that consists of waves with the highest frequencies
Transmission
The passage of an EM wave through a medium