Starter quiz

  • Waves on a string are ______ waves.
    • transverse  ✓
    • longitudinal
    • electromagnetic
  • What is 12 cm in metres?
    • 0.012 m
    • 0.12 m  ✓
    • 1.20 m
    • 12 m
    • 12 000 m
  • Some waves on a string have a frequency of 3 Hz and a wavelength of 12 cm. How would you calculate the wave speed in m/s?
    • 3 x 12
    • 3 x 0.12  ✓
    • 3 ÷ 12
    • 3 ÷ 0.12
    • 0.12 ÷ 3
  • In experiments, what are the different types of variables?
    • independent variable
      ⇔
      what you change in each test to see what effect it has ✓
    • dependent variable
      ⇔
      what you monitor to see if it changes in response ✓
    • control variables
      ⇔
      what you keep the same so they don't affect the results ✓
  • When a wave travels along a string, what is the wave medium?
    • the middle point of a wave, halfway along a wavelength
    • the frequency of the wave
    • the string  ✓
    • the equilibrium position
  • If waves of different frequencies and wavelengths all have the same speed, what happens if you increase the frequency of waves?
    • increasing the frequency also increases the wavelength
    • increasing the frequency decreases the wavelength  ✓
    • increasing the frequency does not affect the wavelength
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