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1.2 1.2 Presentation Transcript

  • Science Starter: February 8, 2012
    • How could you measure each of these of things?
      • Width of a door opening
      • Volume of a liquid
      • Length of time
    Write out the questions and answer You have 5 mins after the bell rings. MAKE SURE TO PUT THE DATE
  • Waves have Measureable Properties Pages 16-21 (section C)
  • Measuring Wave Properties
    • Crest - the highest point, or peak of a wave
  • Measuring Wave Properties
    • Trough - the lowest point, or valley of a wave
  • Measuring Wave Properties
    • Amplitude - the distance between a line through the middle of a wave and crest or trough
    Amplitude is important because it indicates how much energy a wave is carrying. *The bigger the amplitude, the more energy the wave has.*
  • Measuring Wave Properties
    • Wavelength - the distance from crest to crest or trough to trough
  • Measuring Wave Properties
    • Frequency - the number of wavelengths that passes a fixed point in a certain amount of time
  • Wave Speed
    • Wave speed can be measured:
      • Speed= wavelength x frequency
    • http://videos.howstuffworks.com/discovery/27959-assignment-discovery-wavelength-basics-video.htm