MCQ Class 8 Science Chapter 10 Sound Advertisement MCQ’s For All Chapters – Science Class 8th 1. The voice box is also called asstomachheartlarynxmouthYour comments:Question 1 of 192. Sound is a kind ofworkenergyforcepressureYour comments:Question 2 of 193. The hearing range of human ear is20 Hz to 20,000 Hzless than 20 Hzmore than 20,000 Hz20 Hz to 25,000 HzYour comments:Question 3 of 194. Pitch of sound is determined by itsfrequencyspeedamplitudeloudnessYour comments:Question 4 of 195. The frequency of subsonic sound ismore than 20 Hz100 Hzless than 20 Hzmore than 20,000 HzYour comments:Question 5 of 196. Cochlea is a part ofhearing organsound producing organmuscular organair pollutionYour comments:Question 6 of 197. 1 hertz is equal to1 oscillation per second10 vibrations per minute50 vibrations per minute600 vibrations per minuteYour comments:Question 7 of 198. The sound in the audible range is calledultrasonic soundsonic soundsubonic soundlight soundYour comments:Question 8 of 199. Speed isDistancetravelled/TimeTime/DistancetravelledDistance travelled × TimeTime + Distance travelledYour comments:Question 9 of 1910. A pendulum oscillates 20 times in 4 seconds. Find its time period.5 sec.0.001 sec.0.2 sec.0.1 secYour comments:Question 10 of 1911. Loudness of sound is determined bypitchfrequencyamplitudetime periodYour comments:Question 11 of 1912. The number of vibrations made by a vibrating body in one second isfrequencynoiseloudnesspitchYour comments:Question 12 of 1913. The maximum displacement of a body from its mean position is calledamplitudeoscillationperiodic motionfrequencyYour comments:Question 13 of 1914. The velocity of sound at 20°C is approximately3400 m/sec.340 m/sec.430 m/sec.343 m/sec Your comments:Question 14 of 1915. Sound is produced byNon-Vibrating objects onlyVibrating and non- vibrating objectsVibration has no relation to soundVibrating objects onlyYour comments:Question 15 of 1916. Sound cannot travel throughvacuumairwatersolidsYour comments:Question 16 of 1917. Vibration is also known asVibratory motionTranslatory motionOscillatory motionNone of theseYour comments:Question 17 of 1918. Frequency is expressed inKilometerHertzgramDegree centigradeYour comments:Question 18 of 1919. The number of oscillations per second is calledAmplitude of oscillationPitch of oscillationFrequency of oscillationNone of the aboveYour comments:Question 19 of 19 Loading...
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I got 16 out of 19.
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I got 13 out of 19.
I got 16/19
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I got 19 out of 19
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I got 15 out of 19
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Only 18 out of 19
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I got 19 out of 20 correct because one question was out of syllabus
Class 8 science ch 10 sound MCQ test
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