Waves Flashcards
Wave
a disturbance that transfers energy from one place to another without requiring matter to move the entire distance
Medium
A substance in which a wave moves
Mechanical wave
A wave such as a sound or seismic wave that transfers kinetic energy through matter
Transverse wave
A wave in which a disturbance moves at the right angles to the direction of the wave
Longitudinal wave
A type of wave in which the disturbance move in the same direction the the wave travels
Crest
the highest point of a wave
Trough
The lowest point of a wave
Amplitude
The maximum distance that a disturbance causes a medium to move from its rest position
Wave length
The distance from one crest to the next wave crest
Frequency
The number of waves that pass a fixed point in a given period of time
Reflection
The bouncing back of a wave after it hits a barrier
Refraction
The bending of light as it crosses a boundary between two mediums at an angle other than 90 degrees
Diffraction
The spreading out of waves as they pass through an opening or around the edges of an obstacle
Interference
The meeting and combining of waves; the adding or subtracting of wave amplitudes that occur as a wave overlaps
Electromagnetic spectrum
The range of all electromagnetic frequencies