Technology Interactions
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Chapter 07: Audio, Video, and Multimedia
      
  1.The microphone in a radio or television studio  
  a.   changes sound energy into electrical energy.  
  b.   changes electrical energy into mechanical energy.  
  c.   changes mechanical energy into electrical energy.  
  d.   changes electrical energy into sound energy.  
      
  2.The purpose of a radio transmitter is to  
  a.   mix live sound with prerecorded music and commercials.  
  b.   strengthen the signal for radio reception.  
  c.   receive sound signals from the radio station.  
  d.   combine the program signal with the carrier wave.  
      
  3.Which of the following statements is true about radio waves?  
  a.   FM broadcasts travel a longer distance that AM broadcasts.  
  b.   AM broadcasts travel a longer distance than FM broadcasts.  
  c.   AM broadcasts are usually of better quality than FM broadcasts.  
  d.   AM broadcasts are affected less by static than FM broadcasts.  
      
  4.Which of the following are not considered "talent" in the production of a television program?  
  a.   reporters  
  b.   producers  
  c.   announcers  
  d.   hosts of game shows  
      
  5.A type of radio transmission in which the strength of the carrier wave changes is  
  a.   amplitude modulation.  
  b.   very high frequency.  
  c.   frequency modulation.  
  d.   ultra-high frequency.  
      
  6.Two types of sensors used in television cameras for changing color images into electronic signals are  
  a.   hypertext and hotspot.  
  b.   anode and amplifier.  
  c.   vidicon and charge-coupled device.  
  d.   microphone and decoder.  
      
  7.A CD-ROM program allows you to link to parts of the program using  
  a.   multimedia.  
  b.   hypermedia.  
  c.   HDTV.  
  d.   vidicon.  
      
  8.What technique is used to reduce the space needed to store data on CDs and DVDs?  
  a.   video compression  
  b.   hypertext  
  c.   hotspots  
  d.   video modulation  
      
  9.A digital TV system that produces very sharp pictures and sound is called  
  a.   hypermedia TV.  
  b.   DVD.  
  c.   Interactive TV.  
  d.   HDTV.  
      
  10.Over-the-air television transmission that uses a frequency between 54 and 216 megahertz is  
  a.   VHF.  
  b.   UHF.  
  c.   HDTV.  
  d.   FM.  

 
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