Science chapter 18 waves and sound vocab
Terms
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- wave
- rythmic disturbances that carry energy through matter or space.
- medium
- a material through which a wave occurs.
- transverse wave
- a wave where the medium moves at right angles to the direction the wave is travelling.
- lambda
- the symbol for wavelength in equations
- wave velocity
- How fast a wave travels.
- compressional wave
- matter vibrates in the same direction
- pitch
- the highness or lowness of a sound
- intensity
- the amount of energy in a wave
- decible
- the unit for measuring intensity levels
- resonance
- a sound that reaches an object is at the same frequency as the natural frequency of the object, the object will begin to vibrate at this frequency
- acoustics
- the study of sound
- amplitude
- in a wave, the distance from the rest position of the medium to either the crest or trough
- crest
- the highest point of a wave
- trough
- the lowest point of wave
- wavelength
- the distance between identical points on two adjacent waves
- frequency
-
the number of wave crests that pass a point during one second
expressed in hertz Htz - loudness
- the human perception of sound intensity
- ultrasonic technology
- technology usin high-frequency sound waves for many different purposes such as medical diagnoses, sonar, and jewelry cleaning
- music
- sound created using specific pitches, sound quality, and regular patterns
- noise
- sound that has no regular pattern or definite pitch
- quality
- in sound the differences amond sounds of the same pitch and loudness
- interference
- the ability of two or more waves to combine and form a new wave
- reverberation
- the ecoing effect produced by multiple reflections of sound.