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5 Written questions

5 Matching questions

  1. sound waves move fastest in which type of medium?
  2. waves that require a medium to travel are called_________________, and those that can travel in a vacuum are called_______________________
  3. Earth's largest source of EM waves
  4. uses of infrared waves
  5. sound wave
  1. a compression wave that transfers energy by vibrating particles in a medium
  2. b remote controls, laser pointers, heat lamps
  3. c sun
  4. d mechanical, electromagnetic
  5. e solid

5 Multiple choice questions

  1. decibels
  2. measure of the energy or amplitude of a wave
  3. the color that is reflected by the object and the color of light hitting the object
  4. how high or low a sound is
  5. decreases

5 True/False questions

  1. opaque
    none of the light waves get through


  2. translucent
    all or most of light waves get through


  3. factors affecting the speed of soundradio waves


  4. unit of measurement of sound frequencydecibels


  5. uses of microwavesmicrowave oven, cell phone, radar


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