Waves

• What is the formula for the frequency of a wave?

  f = n divided by t
• How is the frequency of a wave defined?

  The frequency of a wave is the number of oscillations divided by the time taken.
• What do the parallel lines observed on the sheet of paper represent?

  The peaks of the ripples on the water
• What term is used to describe the peaks of the ripples on the water?

  Wavefronts
• What is the process of observing water waves in a Ripple Tank?

  1. A rod is placed at one end of a tank of water.
  2. The rod creates a series of ripples.
  3. A bright light is shone through the water.
  4. The ripples are projected onto a sheet of paper.
  5. The peaks of the ripples appear as parallel lines.
• Frequency (f) is measured in Hertz (Hz). One hertz means one cycle per second.
• Wave speed = frequency x wavelength