Starter quiz

  • In a wavefront diagram, what does a wavefront show?
    • a beam of light
    • a peak of a wave  ✓
    • the front of a wave
    • the frequency of a wave
    • the direction of wave travel
  • Which statement about light is correct?
    • Light cannot change direction.
    • A ray box produces a single ray of light.
    • Light can only reflect from shiny surfaces.
    • All types of wave can be reflected.  ✓
  • Match the terms with their meanings.
    • absorbed
      ⇔
      loses its brightness as it passes through the object ✓
    • transmitted
      ⇔
      passes through the object ✓
    • reflected
      ⇔
      bounces off the surface of the object ✓
  • In a ray diagram, the ray that approaches a surface or boundary is called the ______ ray.
    • 'incident' ✓
  • This ray diagram represents a light wave hitting a mirror. Which diagram shows the normal line drawn correctly (as a dashed line)?
    This ray diagram represents a light wave hitting a mirror. Which diagram shows the normal line drawn correctly (as a dashed line)?
  • The ray diagram represents a light wave reflecting from a mirror. A student has placed a protractor over the diagram. What is the angle of incidence?
    The ray diagram represents a light wave reflecting from a mirror. A student has placed a protractor over the diagram. What is the angle of incidence?
    • 27°
    • 63°  ✓
    • 77°
    • 117°
    • 123°
+