reflection

• What happens when a wave hits a boundary with a different material?

  It can be transmitted, absorbed, or reflected
• What type of wave is shown moving in air?

  Transverse wave
• What is refraction?

  Change of direction when passing materials
• What happens to the wave if it is absorbed by the material?

  The wave may not pass through at all
• What determines whether a wave is transmitted, absorbed, or reflected?

  The material and the wavelength of the wave
• What is the term for the ray of light striking the surface?

  Incident ray
• What is the normal line in a ray diagram?

  A line at right angles to the surface
• What is the angle between the incident ray and the normal called?

  Angle of incidence
• What is a key fact about the angle of reflection?

  It equals the angle of incidence
• How does the angle of incidence affect the angle of reflection?

  They are always equal
• How do you determine the position of an image in a mirror using a ray diagram?

  Extend reflected rays back into the mirror
• What are the steps to draw a ray diagram for reflection?

  1. Draw the incident ray from the object.
  2. Draw the normal at right angles to the mirror.
  3. Draw the reflected ray.
  4. Extend reflected rays back to find the image position.
• What are the three outcomes when a wave hits a boundary?

  • Transmitted
  • Absorbed
  • Reflected
• What factors influence wave behavior at material boundaries?

  • Type of material
  • Wavelength of the wave
• What is the relationship between the incident ray and the reflected ray?

  • The angle of reflection equals the angle of incidence.