Light and Sound

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    Chapter 6 Light and Sound ( 28 videos)  (Practice Test)

      6.1: Sources of Light (Practice Test)
      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
      3. Light Travels in Straight Line
    3. Light Travels in Straight Line
      6.2: Luminous and Non-Luminous Objects (Practice Test)
      Transparent, Opaque And Translucent Objects
    1. Transparent, Opaque And Translucent Objects
      2. Luminous and Non-luminous Objects
    2. Luminous and Non-luminous Objects
      6.3: Transparent, Opaque and Translucent Objects (Practice Test)
      Light Travels in Straight Line
    1. Light Travels in Straight Line
      2. Transparent, Opaque And Translucent Objects
    2. Transparent, Opaque And Translucent Objects
      3. Light and Shadow
    3. Light and Shadow
      4. Size of Shadows With The Position of Sun
    4. Size of Shadows With The Position of Sun
      5. Shiny Surfaces Reflect Light Better Than Dull Surfaces
    5. Shiny Surfaces Reflect Light Better Than Dull Surfaces
      6.4: Light Travels in Straight Lines (Practice Test)
      Light Travels in Straight Line
    1. Light Travels in Straight Line
      2. Sounds
    2. Sounds
      3. How is Sound Produced?
    3. How is Sound Produced?
      6.5: Formation of Shadows (Practice Test)
      Production and Propagation of Sound
    1. Production and Propagation of Sound
      2. Light and Shadow
    2. Light and Shadow
      3. Size of Shadows With The Position of Sun
    3. Size of Shadows With The Position of Sun
      6.6: Reflection of Light (Practice Test)
      Medium for Sounds to Travel
    1. Medium for Sounds to Travel
      2. Shiny Surfaces Reflect Light Better Than Dull Surfaces
    2. Shiny Surfaces Reflect Light Better Than Dull Surfaces
      3. Sound Can Travel Through Gases, Liquids And Solids
    3. Sound Can Travel Through Gases, Liquids And Solids
      6.7: Sound (Practice Test)
      Pitch and Intensity of Sound
    1. Pitch and Intensity of Sound
      2. Production and Propagation of Sound
    2. Production and Propagation of Sound
      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
      6.8: Speed of Sound In Different Materials
      Medium for Sounds to Travel
    1. Medium for Sounds to Travel
      6.9: Intensity of Sound (Practice Test)
      Sound Can Travel Through Gases, Liquids And Solids
    1. Sound Can Travel Through Gases, Liquids And Solids
      2. Pitch and Intensity of Sound
    2. Pitch and Intensity of Sound
      6.10: Noise and its Effects on Human Health
      Noise, Its Sources And Effects On Human Health
    1. Noise, Its Sources And Effects On Human Health
      6.11: Controlling Noise Pollution
      How to Reduce Noise Pollution
    1. How to Reduce Noise Pollution