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Waves, Light and Sound quiz for Singapore N(A)-Level Science (Physics) (SEAB 5105/5106) quiz

12questions. Pick an answer and you'll see why right away.

  1. The wavelength of a wave is:

  2. What is the unit of frequency?

  3. A wave has frequency 20 Hz20\ \text{Hz} and wavelength 3.0 m3.0\ \text{m}. What is its speed?

  4. The amplitude of a wave is linked to:

  5. The law of reflection states that:

  6. Refraction of light happens because, on entering a new medium, light:

  7. When light passes from air into glass, it bends:

  8. Sound is described as a longitudinal wave because the particles:

  9. The pitch of a sound depends on its:

  10. The loudness of a sound depends on its:

  11. Why can sound not travel through a vacuum?

  12. A person hears an echo 0.40 s0.40\ \text{s} after shouting at a cliff. Taking the speed of sound as 340 m s−1340\ \text{m s}^{-1}, how far away is the cliff?