9th Class Science Sound Question Bank

done Sound HOTS Objective Problems Total Questions - 25

• question_answer1)
  The position versus time graph of a particle in a wave is shown in the given figure. The parameter of the wave denoted by a is known as its
  A)
   wavelength       done clear
  B)
   amplitude done clear
  C)
   frequency                          done clear
  D)
   origin done clear
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• question_answer2)
  The loudness of a sound wave is directly proportional to its amplitude. Which of the following sound waves is the loudest?
  A)
             done clear
  B)
    done clear
  C)
              done clear
  D)
    done clear
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• question_answer3)
  A section each of two sound waves is shown in the given figure. Which of the following equations is correct?
  A)
   Wavelength of wave A = Wavelength of wave B done clear
  B)
   Amplitude of wave A > Amplitude of wave B done clear
  C)
   Frequency of wave A < Frequency of wave B done clear
  D)
   Amplitude of wave A < Amplitude of wave B done clear
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• question_answer4)
  The wave form of a sound wave is shown in the given figure. Peak points M, N, and O are known as crests and points P and R are known as troughs. The height of the crest or the depth of a trough of a wave can be increased by
  A)
   increasing its frequency done clear
  B)
   increasing its amplitude done clear
  C)
   decreasing its frequency done clear
  D)
   decreasing its wavelength done clear
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• question_answer5)
  A section of a wave is shown in the given figure. Its wave length is\[\lambda \]. The wavelength of the wave can be shown as in figure
  A)
                 done clear
  B)
    done clear
  C)
    done clear
  D)
    done clear
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• question_answer6)
  A section of a wave is shown in the given figure. The points N, P, and R are respectively
  A)
   crest, crest, and trough done clear
  B)
   crest, trough, and crest done clear
  C)
   trough, trough, and crest done clear
  D)
   trough, crest, and trough done clear
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• question_answer7)
  The given figure shows a wave. The wavelength of the wave can be determined by measuring the length
  A)
   ST                                          done clear
  B)
   QR done clear
  C)
   PT          done clear
  D)
   RS done clear
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• question_answer8)
  The given figure shows a wave. The total number of crests and troughs in the wave is
  A)
   3                                             done clear
  B)
   5    done clear
  C)
   7        done clear
  D)
   9 done clear
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• question_answer9)
  The given figure represents the sound produced by a bluebird. After sometime, the sound produced by the same bluebird becomes louder, but its pitch remains the same. The sound produced by the bluebird will now look like the wave shown in alternative
  A)
             done clear
  B)
    done clear
  C)
                          done clear
  D)
    done clear
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• question_answer10)
  The crests and troughs of the sound waves produced through a piccolo (a kind of flute) are close to each other. The crests and troughs of the sound waves produced through a tuba (also a kind of flute) are far apart. If the amplitudes of the sound waves produced through a piccolo and a tuba are equal, then the sound produced by the
  A)
   tuba is louder done clear
  B)
   piccolo is louder done clear
  C)
   tuba has a higher pitch done clear
  D)
   piccolo has a higher pitch done clear
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• question_answer11)
  The sound waves produced from the tightened strings of a guitar
  A)
   have a high pitch   done clear
  B)
   have a low pitch done clear
  C)
   are loud              done clear
  D)
   are soft done clear
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• question_answer12)
  Two different waves, I and II, are produced on two strings, as shown in the given figure. The given waves have equal
  A)
   wavelengths     done clear
  B)
   Frequencies done clear
  C)
   Amplitudes    done clear
  D)
   Periods done clear
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• question_answer13)
  What is the arrangement of the given waves according to their decreasing frequencies?
  A)
   \[\text{III}\to \text{IV}\to II\to \text{I}\]            done clear
  B)
   \[\text{III}\to \text{IV}\to I\to \text{II}\] done clear
  C)
   \[\text{IV}\to \text{III}\to I\to \text{II}\] done clear
  D)
   \[\text{IV}\to \text{III}\to II\to \text{I}\] done clear
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• question_answer14)
  Four different waves labeled I, II, III, and IV are shown in the given table. Which wave has the highest amplitude?
  A)
   I                                              done clear
  B)
   II done clear
  C)
   III                                           done clear
  D)
   IV done clear
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• question_answer15)
  The give figure shows a simple wave. Four points on this wave are labeled as M, N, P, and R. The wavelength of the given wave is the distance between points
  A)
   M and N                              done clear
  B)
   M and P done clear
  C)
   N and P                               done clear
  D)
   N and R done clear
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• question_answer16)
  The given figure shows two waves labeled as I and II respectively. The respective differences between the amplitudes and the wavelengths of the two given waves are
  A)
   3 cm and 9 cm   done clear
  B)
   4 cm and 2 cm done clear
  C)
   2 cm and 4 cm   done clear
  D)
   9 cm and 3 cm done clear
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• question_answer17)
  What is the wavelength of the given wave?
  A)
   5 cm                                      done clear
  B)
   6 cm done clear
  C)
   10 cm                   done clear
  D)
   12 cm done clear
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• question_answer18)
  Two simple waves are shown in the given figure. It can be concluded from given waves that the
  A)
   wavelength of wave I is greater than that of wave II done clear
  B)
   frequency of wave I is greater than that of wave II done clear
  C)
   amplitude of wave I is less than that of wave II done clear
  D)
   period of wave I is less than that of wave II done clear
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• question_answer19)
  During a tsunami, oceanographers observed that the maximum height of an ocean wave from the ocean surface was 15 m. The created ocean wave can be represented as
  A)
  done clear
  B)
  done clear
  C)
    done clear
  D)
    done clear
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• question_answer20)
  Antonio drops a big stone from a bridge into a river. A wave of amplitude 20 cm and wavelength 25 cm is created in the river water. Which of the following figures represents the wave created in the river water?
  A)
                         done clear
  B)
    done clear
  C)
    done clear
  D)
    done clear
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• question_answer21)
  Gary creates a wave using a rope fixed at one end as shown in the figure. What is the wavelength of the wave shown in the figure?
  A)
   0.85 m                                  done clear
  B)
   0.65 m done clear
  C)
   0.45 m                                  done clear
  D)
   0.25 m done clear
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• question_answer22)
  What is the amplitude of the wave shown in the figure?
  A)
   8 cm                      done clear
  B)
   6 cm done clear
  C)
   4 cm      done clear
  D)
   2 cm done clear
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• question_answer23)
  Amanda labels some points on the figure of a wave in her physics book. The crest of the wave is marked by which, letter?
  A)
   P                            done clear
  B)
   Q   done clear
  C)
   R                                            done clear
  D)
   S done clear
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• question_answer24)
  Martha is studying the position versus time graphs of two different waves, as shown in the given figure. Speed of a wave is defined as the product of its frequency and wavelength. The two waves have the same
  A)
   frequency and speed done clear
  B)
   speed and amplitude done clear
  C)
   amplitude and wavelength done clear
  D)
   wavelength and frequency done clear
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• question_answer25)
  The given figure shows the wave generated on a The amplitude of the wave is
  A)
   5 cm                      done clear
  B)
   7 cm done clear
  C)
   10 cm                   done clear
  D)
   14 cm done clear
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