Differentiate between the following:
(a) Internal and external sounds
(b) Production and perception of sound
(c) Amplitude and frequency of waves
(d) Reflection and absorption of sound
(e) Stringed and percussion instruments plz give ans in simple words and full answer
plzzzz
Answers
Answer:
HOPE IT HELPS YOU
Explanation:
1.external sound happens when sound comes from out side whereas internal sound happens when sound comes from inside
2.
Production is all sound are produced by vibaration of one and more parts of an object. Perception is Sound are invisible They fill the surrounding are carried through air in the form of waves. The ear , The nerve and the brain help us to hear the sounds.
3.The frequency is just the opposite; it's the number of wave cycles that are completed in one second. Amplitude and wavelength are both measures of distance. The amplitude measures the height of the crest of the wave from the midline. The wavelength measures the horizontal distance between cycles.
4.Reflection — how much light reflects from a surface. ... Refraction — Bending of the light path as the light passes from one material into another. Absorption — The tendency of a material to absorb some part of the light and convert it to heat, or perhaps some other form of energy.
5. A string instrument has typically strings and we have to strum, pluck or bow to produce vibrations. Eg-guitar, violin etc.. The percussion family is defined as one part of the instrument being hit together, or with a mallet or stick to create sound. Eg-xylophone piano, cymbals etc..