Light and Sound

Select a chapter above and press 'Show Content'. Click a video topic below to view.

    Chapter 6 Light and Sound (13 videos)

      6.1: Luminous and Non-Luminous Objects
      Sources of Heat and light and Methods of Producing Heat
    1. Sources of Heat and light and Methods of Producing Heat
      2. Luminous and Non-luminous Objects
    2. Luminous and Non-luminous Objects
      6.2: Transparent, Opaque and Translucent Objects
      Transparent, Opaque And Translucent Objects
    1. Transparent, Opaque And Translucent Objects
      6.3: Light Travels in Straight Lines
      Light Travels in Straight Line
    1. Light Travels in Straight Line
      2. Light and Shadow
    2. Light and Shadow
      3. Shiny Surfaces Reflect Light Better Than Dull Surfaces
    3. Shiny Surfaces Reflect Light Better Than Dull Surfaces
      6.4: Sound
      Production and Propagation of Sound
    1. Production and Propagation of Sound
      6.5: Speed of Sound In Different Materials
      Sound Can Travel Through Gases, Liquids And Solids
    1. Sound Can Travel Through Gases, Liquids And Solids
      2. Medium for Sounds to Travel
    2. Medium for Sounds to Travel
      6.6: Intensity of Sound
      Pitch and Intensity of Sound
    1. Pitch and Intensity of Sound
      2. Pleasant and Unpleasant Sounds
    2. Pleasant and Unpleasant Sounds
      3. Noise, Its Sources And Effects On Human Health
    3. Noise, Its Sources And Effects On Human Health
      4. How to Reduce Noise Pollution
    4. How to Reduce Noise Pollution