waves Flashcards
A substance through which a wave moves.
Medium
A wave such as a sound wave or a seismic wave that transfers kinetic energy through matter.
Mechanical wave
A type of wave in which the disturbance moves at right angles or perpendicular to the direction in which the wave travels.
Transverse wave
A type of wave in which the disturbance moves in the same direction that the wave travels.
Longitudinal wave
The highest point or peak of a wave.
crest
The lowest point or valley of a wave.
trough
The maxium distance that a disturbance causes a medium to move from its rest position the distance between a crest or trough of a wave and line through the center of a wave.
amplitude
the distance from one wave peak or crest to the next peak or crest.Wavelength can be measured as the distance from any part of one wave to the identical part of the next wave.
wavelength
The number of waves that pass a fixed point in a given amount of time usually one second the number of cycles per unit time.
frequency
The bouncing back of a wave after it strikes a barrier.
reflection
The bending of a wave as it crosses the boundary between two mediums at an angle other than 90 degrees.
refraction
The spreading out of waves as they pass through an opening or around the edges of an obstacle.
diffraction
The meeting and combinding of waves te adding or subtracting of a wave amplitudes that occurs as waves overlap.
interference
A disturbance that transfers energy from one place to another without requring matter to move the entire distance.
Wave