Waves

• time period (s) = 1 / frequency (Hz)
• Frequency (Hz) = 1 / Time period (s)
• Frequency (Hz) = number of waves seen / time period (s)
• Wave speed (m/s) = frequency (Hz) x wavelength (m)
• distance = speed (m/s) x time (s)
• energy 


  the ability to do anything.

  Joules (J)
• Magnification (m) = image height (i) / object height (o)