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Physics (Edexcel Higher)
Electromagnetic waves

Starter quiz

  • What is represented by an arrow in a ray diagram?
    • a peak of a wave
    • a trough of a wave
    • the edge of a wave
    • the direction of wave travel  ✓
  • Which of the following statements about light is correct?
    • Light cannot change direction.
    • All types of wave can be reflected.  ✓
    • A ray box produces a single ray of light.
    • Light can only reflect from shiny surfaces.
  • Match the key words (relating to how light interacts with different objects) to their definitions.
    • absorbed
      ⇔
      taken in and loses energy inside the material of the object ✓
    • transmitted
      ⇔
      passes through the material of 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' ✓
  • The ray diagram shown represents a light wave hitting a mirror. Which of the following diagrams shows the normal line (represented by a dashed line) drawn correctly?
    The ray diagram shown represents a light wave hitting a mirror. Which of the following diagrams shows the normal line (represented by a dashed line) drawn correctly?
  • The ray diagram shown is for 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 shown is for 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°
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