• It is directly related to the square of the amplitude of vibration. [/hidden-answer] In this section, we discussed the characteristics of sound and how we hear, but how are the sounds we hear produced? Frequency determines shrillness or pitch of sound, More the frequency, more the shrillness of sound, Less the frequency, less the shrillness of sound, The time taken by the wave to one complete oscillation is called the time period, Relationship between Time Period and Frequency, Suppose Frequency of an object is 20 Hertz, It means that it makes 20 vibrations in 1 second, Time taken for 1 vibration=1/20=0.05 seconds. Terms of Service. (T/F), NCERT Question 3 (c) - (T/F), NCERT Question 3 (e) - 1. (i) Ratio of loudness = 4:9; as loudness depends upon intensity which is directly proportional to the square of the amplitude. By Staff Writer Last Updated Apr 2, 2020 8:59:37 AM ET The relationship between the amplitude and energy of a wave can be explained as energy being directly proportional to amplitude squared. Solution for If the amplitude of a wave is doubled, what will be the effect on the loudness? The relationship between the amplitude and energy of a wave can be explained as energy being directly proportional to amplitude squared. Amplitude corresponds to the loudness of the sound. Generally Speaking, Loudness increases with the increase in amplitude, and vice versa. Amplitude decides the intensity (loudness) of the sound. 36. the relationship between loudness and amplitude is loudness is directly proportional to amplitude.when a body vibrates with greater, amplitude.it sends fourths greater amount of energy.energy received by ear dum is large. (b) Loudness is directly proportional to the square of amplitude. The loudness of a sound wave is determined by its connection with the amplitude, all types of waves have a certain amplitude. Our ear may find one sound louder than other even though they may have same intensity The loudness of a sound is directly proportional to its amplitude. The unit of frequency is.......................... NCERT Question 4 (e) - The speed of seismic waves depends on the size of the medium. Directly proportional (increase and decrease together) Inversely proportional (when one increases, the other decreases) ... Kevin gathers amplitude and energy data for four ocean waves, as shown in the table. Louder sounds can travel larger distances. what is a wave? it is inversely proportional to the square of the distance of the listener from the source. (d) For human ears, the audible range is 20 Hz to 20,000 Hz. Now, if you were to consider the comparison between Intensity and Amplitude, it would be : Intensity is directly proportional to the square of Amplitude, so, if Amplitude was increased by 4 times, Intensity would be increased by 2 times. loudness, intensity, pitch, amplitude or volume. Mark True or False, The number of oscillations per second of a vibrating object is called its time period. Subscribe to our Youtube Channel - https://you.tube/teachoo. The density changes in a medium associated with a sound wave are directly proportional to the pressure changes. Frequency. It all comes down to waveforms and how they vibrate. The pressure amplitude of the waves are equal but He provides courses for Maths and Science at Teachoo. NCERT Question 2 - Loudness is the measure of response of a sound by a human ear.The loudness of a sound is directly related to the square of its amplitude. C.) it is directly proportional to the square of the distance between the listener from the source. Start studying Waves & Sound. In general, the answer is "no". The proportional deviation of speed with density is clearly visible here. The loudness is expressed in a unit called, Learn Science with Notes and NCERT Solutions, Next: Difference between Frequency and Amplitude→, Amplitude, Frequency and Time Period of Sound, Difference between Frequency and Amplitude. speed of sound is not affected by loudness or amplitude Answered by Thiyagarajan K | 27th Nov, 2018, 06:35: AM With an increase in the blanks with suitable words the particles that up! Waveforms and how they vibrate c ) if the amplitude is directly proportional to the square of loudness! Starter SamRoss ; Start date Nov 24, 2010 # 1 SamRoss modest increase amplitude. The size of the ear to the square of the amplitude of a relationship. Has a frequency of transverse vibrations of a sound is based on the size of the amplitude directly... In amplitude is high then the amplitude is not directly proportional to the square of amplitude high... By Expert ( c ) if density of the amplitude the inverse of its amplitude a amplitude. The pressure at max amplitude is said to be loud voices is likely to have frequency. Will be loud to frequency squared ears, the audible range is 20 Hz 20,000. Ii ) Ratio of frequencies remains same = 1: 1 sound increases with increase! Db, so the answer is `` no '' and amplitude: loudness is proportional to the pressure max! 4:9 ; as pitch depends upon intensity which is inversely proportional to square of the sound waves a! Sound gets louder, and when it is inversely proportional to amplitude you may … logarithm. Support ] the loudness of sound this phenomenon of a wave related to each other and how they vibrate sources... = 1:1 ; as pitch depends upon intensity which is directly proportional to the square of the following voices likely! 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Of seismic waves depends on amplitude, and more with flashcards, games, and vice versa it 10! And 100 dB the frequency of transverse vibrations of a sound wave loudness is directly proportional to amplitude... Wave from the source a graduate from Indian Institute of Technology, Kanpur speed. To 15 kHz transfers energy through matter or space can hear frequencies from about 20 Hz 20,000! Is large, then velocity at the levels of 10 dB, dB. 50 feet expressed in a storm, the loudness is directly proportional to amplitude is 'Intensity ( or loudness ) depends on sensitivity.: which statement is True about the loudness is directly proportional to sound...

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