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Light, year 8, lesson 2, science

Light, year 8, lesson 2, science

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Transcript

  • 1. Light – lesson 2
    • Target
    • To know more about the properties of the image formed in plane mirrors.
  • 2. Investigating mirrors
    • The diagram shows a ray box shining a ray of light on a plane (flat) mirror.
    • The normal is at 90 degrees to the mirror.
  • 3. Method
  • 4. Method
  • 5.  
  • 6.  
  • 7. Considering your results
    • I noticed that the angle of incidence is ____________ (larger than / equal to / smaller than) the angle of reflection.
  • 8. Considering your results
    • I noticed that the angle of incidence is equal to (larger than / equal to / smaller than) the angle of reflection.
  • 9.  
  • 10.  
  • 11. Types of mirrors There are two types of m____. F__ mirrors and c____ mirrors. Flat mirrors are known as p mirrors. If a mirror curves in then it is a c_____ mirror, if it curves out it is a c____ mirror. irrors lat urved lane oncave onvex
  • 12. Question
  • 13. Key facts about plane mirrors
    • The image formed in a plane mirror is:
    • Erect and not magnified.
    • Virtual (cannot be projected onto a screen).
    • Forms as far behind the mirror as the image is in front of it.
    • Laterally inverted – left side of the object appears on the right side of the image.
  • 14. Some beautiful pictures showing reflection of light in different situations.
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