short note on 1) frequency of vibration 2)amplitude of pendulum 3)audible sound 4)noise and music 5)time period of vibration
Answers
Answer :
1. The number of vibrations or oscillations made in one second is called the frequency of vibration. The unit of frequency of vibration or oscillation of a vibrating object is hertz. When an object makes one vibration per second its frequency is said to be 1 hertz. ... Time period is equal to the reciprocal of frequency.
2 . When given an initial push, it will swing back and forth at a constant amplitude. Real pendulums are subject to friction and air drag, so the amplitude of their swings declines.
3 . The human ear can easily detect frequencies between 20 Hz and 20 KHz. Hence sound waves with frequency ranging from 20 Hz to 20 KHz is known are audible sound. The human ear is sensitive to every minute pressure difference in the air if they are in the audible frequency range.
4 . Noise is sound with a continuous structure. Music is composed of sounds with a fundamental frequency and overtones. Noise is composed of sounds with frequencies that range continuously in value from as low as you can hear to as high as you can hear — not necessarily at equal intensity, however.
5 . Period (physics) A time period (denoted by 'T' ) is the time taken for one complete cycle of vibration to pass a given point. As the frequency of a wave increases, the time period of the wave decreases.
please mark me as brainliest and follow me .
5 THANKS = FOLLOW
CH-SOUND
1)The frequency of a vibration, measured in Hertz (Hz), is simply the number of to and fro movements made in each second. A tuning fork or piano string vibrating at 256 Hz will produce a pitch of middle C. A greater frequency than this will produce a higher-pitched note and so on.
2)The Amplitude is the height from the center line to the peak (or to the trough). Or we can measure the height from highest to lowest points and divide that by 2.
3)The human ear can easily detect frequencies between 20 Hz and 20 KHz. Hence sound waves with frequency ranging from 20 Hz to 20 KHz is known are audible sound.
4)Music is pleasent sound and noise is unpleasent sound.The sound above 20Hz is noise.Sound between 30Hz -20kHz is music.
5)A time period (denoted by 'T' ) is the time taken for one complete cycle of vibration to pass a given point. As the frequency of a wave increases, the time period of the wave decreases. The unit for time period is 'seconds'.