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8 CK Sound Waves
8 CK SCIENCE Sound Waves - COMPLETE
Term | Definition |
---|---|
Wavelength | the distance between two consecutive identical points on a wave |
Frequency | the number of complete waves (or cycles) per unit of time |
Amplitude | the maximum movement from rest (measured from rest to a crest OR a trough) |
Crest | the highest point of a wave (analogous to compression) |
Trough | the lowest point of a wave (analogous to rarefaction) |
Transverse Wave | a wave in which the motion of the medium is at right angles to he direction of the wave (EM waves) |
Longitudinal Wave | a wave in which the motion of the medium is parallel to the direction of the wave (sound) |
Wave | a traveling disturbance that carries energy from one place to another |
Vibration | Any movement that follows the same path repeatedly |
Medium | the matter or substance through which a wave is transmitted |
Wave Speed | how fast waves move (_________ = frequency x wavelength) |
Wave Interactions | when two or more waves meet and affect each other |
Reflection | waves bounce off of surfaces |
Refraction | waves change directions (bend) when they pass from one medium to another of differing densities |
Diffraction | waves change directions (bend) when they pass through an opening or around a barrier |
Constructive Interference | two or more waves meet and add together to make a larger wave |
Destructive Interference | two or more waves meet and add together to make a smaller wave |