Sound Flashcards
What are the high points in a sound waveform called?
Compressions
What are the low points in a sound waveform called?
Rarefactions
Audible range of frequency
20Hz to 20000Hz
Above 20000 Hz
utrasonic
Below 20Hz
infrasonic
What is amplitude?
the maximum displacement of particles of the medium on either side of its mean position.
What is time period?
The time taken by a particle of a medium to complete its one vibration.
What is frequency?
The number of vibrations made by a particle of a medium in one second.
What is wave velocity?
The distance travelled by the wave in one second.
What are sound waves also called as?
elastic or mechanical waves
Transverse waves travel only in?
on solid and on the surface of liquid.
Speed of electromagnetic wave is________ in different medium but___________ in vacuum.
different,same
Light waves are ————- waves
transerve
Requirement for the reflecting of sound wave
the sound of the reflecting surface must be bigger than the wavelength of th sound wave
