Any disturbance that transmits energy through matter or space.
wave
A solid, liquid or gas that is vibrated.
Medium
Waves in which the particles of the medium vibrate with an up and down motion.
Transverse Wave
Waves in which the particles of the medium vibrate back and forth along the path that the wave travels.
Longitudinal Wave
In a body of water, is an example of a combination of both transverse and longitudinal waves.
Surface Wave
Maximum distance the wave vibrates from the rest position.
Amplitude
The distance between any adjacent crests or compressions in a series of waves.
Wavelength
The number of waves produced in a given amount of time.
Frequency
The speed at which a wave travels.
Wave Speed
Occurs when a wave bounces back after striking an object.
Reflection
The bending of waves around a barrier or through an opening.
Diffraction
The result of two or more waves overlapping.
Interference
When an object vibrates at or near the resonant frequency of the second object causes the second object to vibrate.
Resonance
Sounds with frequencies that are higher than 20,000HZ.
Ultrasonic
The apparent change in the frequency caused by the motion of either the listener or the source of the sound.
Doppler Effect
A reflected sound wave.
Echo
The emission of energy in the form of EM waves.
Radiation
The transfer of energy carried by light waves to particles of matter.
Absorption
Matter through which visible light is easily transmitted.
Transparent
High energy electromagnet waves that are between ultraviolet light and gamma rays in the electromagnetic spectrum.
X-Rays