Chapter 11 - Sound

– Sound

– Sound

Sound

Quiz

 

1. What is the speed of sound in air at room temperature?
   
   1.   300 m/s
   2.   . 330 m/s
   3.   . 340 m/s
   4.   360 m/s
2. Sound waves are an example of:
   1.   . Transverse waves
   2.   . Longitudinal waves
   3.   . Electromagnetic waves
   4.   . Surface waves
3. The unit of frequency is:
   1.   . Meter
   2.   Second
   3.   . Hertz
   4.   Decibel
4. Which of the following can sound not travel through?
   1.   Solids
   2.   . Liquids
   3.   . Gases
   4.   . Vacuum
5. The range of human hearing is:
   1.   . 10 Hz to 10,000 Hz
   2.   . 20 Hz to 20,000 Hz
   3.   . 100 Hz to 10,000 Hz
   4.   . 1 Hz to 1,000 Hz
6. . The loudness of a sound is measured in:
   1.   Hertz
   2.   . Newton
   3.   Decibel
   4.   Joule
7. Which of the following factors does not affect the speed of sound?
   1.   Temperature
   2.   . Medium
   3.   . Frequency
   4.   . Humidity
8. . The pitch of a sound is determined by its
   1.   Amplitude
   2.   . Frequency.
   3.   . Speed
   4.   . Wavelength
9. The reflection of sound is called:
   1.   . Echo
   2.   Reverberation
   3.   . Refraction
   4.   . Diffraction
10. . Sound waves travel fastest through:
    1.   Air
    2.   Water
    3.   . Steel
    4.   . Vacuum