Light and Sound

Light and Sound

1. Sound

2. Light

   • Characteristics of the light
     • Light can have an specific colour or white colour
       • The light of white colour is done by the mixture of primary colours
         • Blue
         • Green
         • Red
     • How does the light travel?
       • Light travels in all directions
       • Light travels in straight lines
   • What is the light?
     • The light is a form of energy
   • Where is the light produced?
     • The light is produced by luminous objects.
       • There are two kind of light sources
         • Natural light source
           • For example
             • Sun
             • Stars
             • Glow Worm
         • Artificial light source
           • For example
             • Flashlights
             • Bulbs
   • The materials and the light
     • Opaque materials
       • Don't allow
         • The light
           • To pass through them
       • We cannot see
         • Objects
           • Through them
     • Translucent materials
       • Allow
         • Some light
           • To pass through them
       • We can see
         • Objects
           • Through them
             • But not clearly
     • Transparent materials
       • Allow
         • The light
           • To pass through them
       • We can see CLEARLY
         • The objects
           • Through them
   • Light's properties
     • Refraction
       • The light's direction change
         • When the light passes from one material to another
     • Reflection
       • When the light shines on
         • An opaque object
           • It reflects
             • So we can see the object
         • A mirror
           • It reflects
             • In the same direction