Physical Science Module 14

20 Questions | Total Attempts: 912

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Physical Science Module Quizzes & Trivia

In this quiz on the scientific study of physics, we will be taking a close look at the specific topics of waves and sounds, two intriguing realms of study which often go unappreciated. Let’s take a look.


Questions and Answers
  • 1. 
    A wave with a direction of propagation that is perpendicular to its direction of oscillation is called:
    • A. 

      Vertical Wave

    • B. 

      Transverse Wave

    • C. 

      Longitudinal Wave

    • D. 

      Horizontal Wave

  • 2. 
    A wave with a direction of propagation that is parallel to its direction of oscillation is called:
    • A. 

      Vertical Wave

    • B. 

      Transverse Wave

    • C. 

      Longitudinal Wave

    • D. 

      Horizontal Wave

  • 3. 
    Any speed that is faster than the speed of sound in the substance of interest is called Supersonic Speed.
    • A. 

      True

    • B. 

      False

  • 4. 
    The sound produced as a result of an object traveling at or above Mach 1 is called:
    • A. 

      Sonic Boom

    • B. 

      Thunder

    • C. 

      Supersonic Boom

  • 5. 
    An indication of how high or low a sound is, which is primarily determined by the frequency of the sound wave, is called:
    • A. 

      Wavelength

    • B. 

      Frequency

    • C. 

      Pitch

  • 6. 
    A recorder is a woodwind instrument in which the player blows into a tube, setting up a wave in the tube.  A musician has 2 recorders.  The first one is rather short, and the second one is significantly longer.  Which recorder is capable of playing notes with the lowest pitch?
    • A. 

      The first recorder (shorter one)

    • B. 

      The second recorder (longer one)

  • 7. 
    A popular science fiction movie was advertised with the slogan, "In space, no one can hear you scream."  Why is this a true statement?
    • A. 

      Because there is no one in space to hear you.

    • B. 

      Because there is little to no air in space for sound waves.

    • C. 

      Because there are too many microparticles in space for sound waves to move through.

  • 8. 
    Do sound waves oscillate parallel to or perpendicular to the direction in which the wave travels?
    • A. 

      Parallel

    • B. 

      Perpendicular

  • 9. 
    What is the speed of sound in air that has a temperature of 25 degrees Celcius?
    • A. 

      22.1 m/sec

    • B. 

      346.5 m/sec

    • C. 

      357.1 m/sec

    • D. 

      4972.5 m/sec

  • 10. 
    A sound wave traveling through 17 degrees Celcius air has a wavelength of 2 meters.  What is the frequency of the sound wave?
    • A. 

      170.85 Hz

    • B. 

      1690.65 Hz

    • C. 

      16.25 Hz

    • D. 

      174.55 Hz

  • 11. 
    Which waves have the longest wavelength:  sonic waves, infrasonic waves, or ultrasonic waves?
    • A. 

      Sonic Waves

    • B. 

      Infrasonic Waves

    • C. 

      Ultrasonic Waves

  • 12. 
    During a thunderstorm, the temperature is 10 degrees Celcius.  If you see a lightning strike and then hear the thunder 2 seconds later, how far away did the lightning strike?
    • A. 

      684.2m

    • B. 

      110.5m

    • C. 

      3978m

    • D. 

      675m

  • 13. 
    A ship blows its horn.  Some of the sound waves travel through the air and then hit the water.  Will the sound waves travel faster in the water or in the air?
    • A. 

      Water

    • B. 

      Air

  • 14. 
    A man and woman are singing a duet.  The man sings the low notes, and the woman sings the high notes.  The woman, since she is singing the melody, is louder than the man.  Are the wavelengths of the man's sound waves longer than, shorter than, or the same size as those of the woman?
    • A. 

      Longer

    • B. 

      Shorter

    • C. 

      The same size

  • 15. 
    A man and woman are singing a duet. The man sings the low notes, and the woman sings the high notes. The woman, since she is singing the melody, is louder than the man.  Are the frequencies of the man's sound waves lower or higher than those of the woman?
    • A. 

      Lower

    • B. 

      Higher

  • 16. 
    A man and woman are singing a duet. The man sings the low notes, and the woman sings the high notes. The woman, since she is singing the melody, is louder than the man.  What about the amplitudes of the waves?  Are they larger or smaller?
    • A. 

      Larger

    • B. 

      Smaller

  • 17. 
    A man and woman are singing a duet. The man sings the low notes, and the woman sings the high notes. The woman, since she is singing the melody, is louder than the man.  What about the speed of the sound waves?  Are they slower, faster or the same as the woman's
    • A. 

      Slower

    • B. 

      Faster

    • C. 

      The same as

  • 18. 
    A jet travels through 10 degree Celcius air at Mach 3.  What is its speed in meters per second?
    • A. 

      1026.3 m/sec

    • B. 

      1012.5 m/sec

    • C. 

      165.75 m/sec

    • D. 

      5967 m/sec

  • 19. 
    You are driving in a city that has a siren which sounds for 30 seconds every day at noon.  You stop at a stoplight and then hear the sound of the siren.  The stoplight then turns green, and you start driving.  As you speed up, you notice that the pitch of the siren keeps getting higher.  Are you driving toward or away from the siren?  (Assume that the true pitch of the siren stays constant.)
    • A. 

      Toward

    • B. 

      Away from

  • 20. 
    An amplifier takes a 30 decibel sound and turns it into an 80 decibel sound.  How many times larger is the intensity of the sound waves coming out of the amplifier as compared to the intensity of the sound waves going into the amplifier?
    • A. 

      1000 times larger

    • B. 

      100,000 times larger

    • C. 

      5000 times larger

    • D. 

      50,000 times larger

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