Welcome to your Sound Waves(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. Sound waves are what type of wave?A surface waveA transvers waveA longitudinal waveA tidal wave2. Sound waves are longitudinal waves which have _________________ and rarefactions. TroughsCompressionsCrestsNone of the above3. A movement back and forth that produces sound is called _____________SoundAirVibration4. Due to which phenomena sound is heard at longer distances in nights than in day?Diffraction of soundInterference of soundRefractionReflection5. The material that a wave travels through is called the ReflectionMediumSpeedRefraction6. What type of waves are Sound Waves?Longitudinal wavesLatitudinal mechanical wavesLongitudinal wavesLatitudinal waves7. Given below is the diagram of human ear. Choose the correct labeling of the parts A, B and C.A-ear canal, B-Eustachian tube, C-cochleaA-ear lobe, B-ear canal, C-auditory nerveA-ear canal, B-Eustachian tube, C-auditory nerveA-ear drum, B-auditory nerve, c-ear canal8. The type of wave shown is a __________ wave.LightSoundTransverseLongitudinal9. Which of the following statement is or are correct about longitudinal mechanical waves?The longitudinal mechanical waves which lie in the frequency range 20 Hz to 20000 Hz are called audible or sound waves.The longitudinal mechanical waves having frequencies less than 20 Hz are called infrasonic.The longitudinal mechanical waves having frequencies greater than 20,000 Hz are called ultrasonic wavesAll of the above are correct10. What is the unit of loudness?PhonDecibelAll of the aboveBel11. All waves except __________ waves must travel through a medium. LightCompressionalSoundWater12. Which of the following is not a type of electromagnetic wave? Gamma raysSoundRadio wavesRed light13. Before the main shock waves, the earthquake produces the characteristic sound waves which some animals like rhinoceros can hear. Can you guess the kind of sound waves produced here?Ultrasonic soundsNone of theseInfrasonic soundsAudible Sounds14. What is Intensity of Sound?It is inversely proportional to the square of the distance of point from the source.BothNone of the aboveIt is directly proportional to the square of amplitude of vibration, square of frequency and density of the medium.15. The speed at which a wave travels.Wave SpeedWave heightWave lengthDoppler effect16. Which of the following can produce longitudinal as well as transverse waves under different conditions?SlinkyTuning forkNone of theseBats17. You must have seen the doctor checking the sounds produced in the chest or heart beat of a patient using a medical instrument called Stethoscope. On what principle does this Stethoscope work?None of theseWave motionMultiple reflectionsMultiple refractions18. Sound moves in ____________________ directions. TwoAllOne19. __________________ is an organized pattern of sound.PitchRhythmNoise20. The sound can travel in air when:There is no moisture in the atmosphereDisturbance moveParticles of medium travel from one place to anotherBoth particles as well as disturbance travel from one place to another21. In this animation what kind of interference is shown? RefractionConstructiveDestructiveReflection22. The speed of the vibration is called ___________________.FrequencyRhythmPitch23. Sound travels best through ___________________.SolidWaterAir24. The echo-receiver of a sonar attached to a ship, receives the echo from the bottom of sea 4 seconds after the ultrasonic waves were sent into the sea. If the speed of sound in water is 1500 m/s, then what is the depth of the sea?3500 m3000 m6000 m15000 m25. If the speed of a wave is 380 m/s and its frequency is 1900 Hz, then the wavelength of the wave will be:0.2 m200 m20 m2 m26 out of 25Time is Up!