Warm Up Quiz April 2

10 Questions | Total Attempts: 147

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Warm Up Quiz April 2

Warm Up dates 3/19- 3/30


Questions and Answers
  • 1. 
    March 19 Electromagnetic waves consist of changing elecrical and magnetic fields.
    • A. 

      True

    • B. 

      False

  • 2. 
    March 21 Polarization is when light shines on some materials, light passes through and on others it doesn't.  This proves that light is a wave.
    • A. 

      True

    • B. 

      False

  • 3. 
    March 23 AM radios stations broadcast by changing the frequency, FM stations broadcast by changing the amplitude. 
    • A. 

      True

    • B. 

      False

  • 4. 
    March 23 AM waves can travel longer distances than FM waves, but the sound quality is not as high.
    • A. 

      True

    • B. 

      False

  • 5. 
    March 26 Cell phones send signals to nearby receivers in order to connect a phone call. 
    • A. 

      True

    • B. 

      False

  • 6. 
    March 28 Light and sound are both waves. 
    • A. 

      True

    • B. 

      False

  • 7. 
    March 28 Light is an electromagnetic wave that can travel through a vacuum, sound cannot travel through a vacuum. 
    • A. 

      True

    • B. 

      False

  • 8. 
    March 29 Fluorescent lights are commonly used in businesses and schools because they are NOT energy efficient. 
    • A. 

      True

    • B. 

      False

  • 9. 
    March 30 You can find the daily warm ups on the class Twitter. 
    • A. 

      True

    • B. 

      False