MCQ Class 8 Science Chapter 10 Sound Advertisement MCQ’s For All Chapters – Science Class 8th 1. The voice box is also called asstomachheartlarynxmouthQuestion 1 of 192. Sound is a kind ofworkenergyforcepressureQuestion 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 HzQuestion 3 of 194. Pitch of sound is determined by itsfrequencyspeedamplitudeloudnessQuestion 4 of 195. The frequency of subsonic sound ismore than 20 Hz100 Hzless than 20 Hzmore than 20,000 HzQuestion 5 of 196. Cochlea is a part ofhearing organsound producing organmuscular organair pollutionQuestion 6 of 197. 1 hertz is equal to1 oscillation per second10 vibrations per minute50 vibrations per minute600 vibrations per minuteQuestion 7 of 198. The sound in the audible range is calledultrasonic soundsonic soundsubonic soundlight soundQuestion 8 of 199. Speed isDistancetravelled/TimeTime/DistancetravelledDistance travelled × TimeTime + Distance travelledQuestion 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 secQuestion 10 of 1911. Loudness of sound is determined bypitchfrequencyamplitudetime periodQuestion 11 of 1912. The number of vibrations made by a vibrating body in one second isfrequencynoiseloudnesspitchQuestion 12 of 1913. The maximum displacement of a body from its mean position is calledamplitudeoscillationperiodic motionfrequencyQuestion 13 of 1914. The velocity of sound at 20°C is approximately3400 m/sec.340 m/sec.430 m/sec.343 m/sec Question 14 of 1915. Sound is produced byNon-Vibrating objects onlyVibrating and non- vibrating objectsVibration has no relation to soundVibrating objects onlyQuestion 15 of 1916. Sound cannot travel throughvacuumairwatersolidsQuestion 16 of 1917. Vibration is also known asVibratory motionTranslatory motionOscillatory motionNone of theseQuestion 17 of 1918. Frequency is expressed inKilometerHertzgramDegree centigradeQuestion 18 of 1919. The number of oscillations per second is calledAmplitude of oscillationPitch of oscillationFrequency of oscillationNone of the aboveQuestion 19 of 19 Loading...
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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