WASSCE EXAM PREPARATION TEST Preamble You are required to read all instructions carefully before you answer any question. All questions carry equal marks. Click next to go to the next page, and at the end of all pages, click submit button to see your Grade, Marks, and how many questions you got them correct. On the result page, you will see My Dashboard, Next Test, Retake Test, and Back to Home, choose what you prefer to do next. SUBJECT: INTEGRATED SCIENCE TOPIC: SOUND ENERGY ISSUE: ONE Each question on this section is followed by four options A to D, Find the correct option for each question. Click Next below to start. 1. A bell jar contains a ringing bell. As the air inside is pumped out, the sound intensity gradually decreases becauseA. a medium is needed for sound transmission.B. the sound has turned into stationary waves.C. the sound cannot pass through the solid bell jar.D. the air inside the jar is heated. 2. The distance between two successive compressions of a sound wave is itsA. pitchB. frequencyC. wavelengthD. amplitude 3. For any system to produce sound, it mustA. possess potential energy.B. be vibrating.C. both kinetic and potential energies.D. possess kinetic energy. 4. The quantity of musical note depends on theA. pitch of the note.B. intensity of the note.C. overtones present.D. Ipudness of the note. 5. The external ear consists of the pinna and theA. ampullae.B. oval window.C. Eustachian tube.D. auditory canal. 6. Which structure in the ear contains sound receptor cells?A. Semi-circular canalB. TympanumC. CochleaD. Ear canal 7. Which of the following statements is correct?A. The flute is an example of a percussion instrument.B. Sound travels faster in liquids than in solids.C. The loudness of a note is measured in decibels.D. The same note played on different instruments can be distinguished because of their quality 8. Which of the following factors can affect the speed of sound in air?I. Temperature of the surroundingII. Direction of the windIII. Pitch of the soundA. I onlyB. II onlyC. I and II onlyD. I and III only 9. The frequency of vibration in a string is directly proportional to theA. length of the string.B. thickness of the string.C. reciprocal length of the string.D. square root of the mass of string. 10. Which of the following phenomena is due to Doppler effect?A. The sound of an approaching vehicle increases in intensityB. A vibrating tuning fork produces a loud note in a column of airC. A sonometer wire vibrates vigorously to throw off a paper riderD. A man whistling in a large hall hears a repetition of the sound he produces. 1 out of 3 11. Which of the following waves are electromagnetic? A. Sound wavesB. Tidal wavesC. Ultraviolet waveD. Waves on a rope 12. The apparent change in the pitch of sound as a result of the relative motion between the source of sound and the observer is calledA. beat.B. diffraction.C. doppler effect.D. interference. 13. Which of the following properties is not a characteristic of a sound wave?A. DiffractionB. InterferenceC. PolarizationD. Reflection 14. Which of the following factors affects the loudness of sound?A. AmplitudeB. FrequencyC. VelocityD. Wavelength 15. The characteristic that can be used to distinguish between the same note played on a piano and an organ is theA. beat.B. loudness.C. pitch.D. quality. 16. Sound waves cannot undergoA. diffraction.B. dispersion.C. reflection.D. refraction. 17. In which of the following media does sound travel fastest?A. AirB. SteelC. WaterD. Vacuum 18. The pitch of a note depends on theA. velocity of the sound.B. frequency of the sound.C. type of instrument.D. quality of the sound. 19. Which of the following statements is correct?A. Light travels faster in water than in air.B. Sound travels faster in air than in wood.C. Sound waves are longitudinal waves.D. Light waves are elastic waves. 20. Calculate the frequency of the sound wave of wavelength 0.4 m and moving at a speed of 8.0 m/s.A. 0.05 HzB. 0.50 HzC. 3.20 HzD. 20.00 Hz 2 out of 3 21. One characteristic that distinguish between the same note played on a piano and an organ is theA. beat.B. loudness.C. pitch.D. quality. 22. Sound waves areA. longitudinal mechanical waves.B. transverse mechanical waves.C. longitudinal electromagnetic waves.D. transverse electromagnetic waves. 23. A wave completes 40 vibrations in 0.4 seconds. The frequency of the wave isA. 20 HzB. 40 HzC. 80 HzD. 100 Hz 24. An observer hears the sound from a distant horn, but he notes that the pitch of the sound was rising. This means that the source wasA. approaching the observer.B. receding from the observer.C. stationary.D. describing a circular motion 25. The time taken for a particle to undergo a complete oscillation is known asA. amplitude.B. frequency.C. period.D. wavelength. 26. Which of the following statements about sound waves is not correct?A. Sound waves travels with same speed in different media.B. Speed of sound waves in a medium depends on density and elasticity of the medium.C. Speed of sound waves is lower than speed of light.D. Sound waves travel through all materials. 27. A wave of wavelength 40.0 m moves at a speed of 440 ms. Determine the frequency of the wave.A. 0.01 HzB. 11.00 HzC. 99.00 HzD. 440.00 Hz 28. In which of the following media would sound travel fastest?A. AirB. IronC. WaterD. Wood 29. The function of the pinna of the human ear is toA. receive and transmit sound waves.B. receive and refract sound waves.C. change sound waves into electrical impulses.D. change sound waves into radiations. 30. An echo is caused byA. reflection of sound waves.B. transmission of sound waves.C. diffraction of sound waves.D. refraction of sound waves. 3 out of 3 Time is Up!