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5 Written questions

5 Matching questions

  1. Real Image
  2. Period
  3. Fuse
  4. Destructive Interference
  5. Crest
  1. a Formed by rays of light coming together
  2. b A protective device containing a conductor that melts under heat produced by an excess, thereby opening the circuit
  3. c The top or highest points on a wave
  4. d The amount of time it takes to repeat one cycle
  5. e Occurs when waves add up to make a smaller amplitude

5 Multiple choice questions

  1. A lens with a surface curved like the inner surface of a sphere
  2. Units for power
  3. The maximum distance from the average in harmonic motion
  4. Time rate of the flow of electric charge, in the direction that a positive moving charge would take.
  5. Multiple echos of sound caused by reflections of sound building up and blending together

5 True/False questions

  1. Alternating CurrentAn electric current flowing in one direction only.

          

  2. Electromagnetic SpectrumA machine that converts electrical energy into mechanical energy

          

  3. Formula to calculate the speed of a waveSpeed= Frequency × Wavelength

          

  4. DiffractionThe bending of a wave as it travels across a boundary

          

  5. TranslucentTissue paper, frosted glass