Reflection of light

29 March 2023
6.1 Reflection of Light
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PhysicsSecondary EducationAge 12,13

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29 March 2023
6.1 Reflection of Light

Slide 1 - Diapositive

Content objectives
  • describe what light is
  • describe how light is reflected from a plane mirror
  • draw ray diagrams to show the reflection of light from a plane mirror

Slide 2 - Diapositive

Slide 3 - Vidéo


List as many transparent materials as you can.  Try to include solid, liquid, and gases.

Slide 4 - Question ouverte

Slide 5 - Diapositive

Slide 6 - Vidéo

Famous people who studied Light

Slide 7 - Diapositive

Key Question 
Does light travel in straight lines or curved paths?

Slide 8 - Diapositive

Slide 9 - Diapositive


In which diagram can you see light?
a
b

Slide 10 - Sondage

Slide 11 - Diapositive

Key Question 2
What are light rays?

Slide 12 - Diapositive

Slide 13 - Diapositive

Key Question 3
How can we show what happens to light during reflection?

Slide 14 - Diapositive

Slide 15 - Lien

Ray Diagram

Slide 16 - Diapositive

Slide 17 - Lien

Lesson Summary
  • Light a.k.a. visible light is electromagnetic radiation that can be both particle and wave.
  • Light travels in a straight line.
  • Light can travel in a vacuum or in an empty space.
  • Light travels faster than sound.
  • Transparent objects allow light to pass through them.
  • Opaque objects do not allow light to pass through them, instead, the energy gets absorbed.
  • An incident ray is a ray of light that falls on a mirror.
  • A reflected ray is a light ray reflecting away from the mirror

Slide 18 - Diapositive