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Chapter # 2 – Download Free Class 10th / Matric / SSC-II Physics Notes (FBISE Islamabad) and Other Boards in shape of Video Lectures in Urdu Language

Dear Students,

From this section you can download / view Video Lectures on all subjects for all 6th, 7th, 8th, 9th and 10th classes/grades free of cost. The Videos for class 9th and 10th classes are prepared by SABAK Foundation for the ease of students as per new and updated syllabus/course prescribed by Federal Board of Intermediate & Secondary Education (FBISE), Islamabad – Pakistan and other BISE(s)/Boards of Pakistan and Directorate of Education, Islamabad – Pakistan. We are fully hopeful that after after watching/viewing these Video Lectures you will score 90% plus marks in your exams as they have been prepared in a very simple, easy, brief and in simple and lucid language to understand. For any queries you can contact us. We recommend you to like our Facebook Fan page  for latest updates and new posts. You can also get our latest posts via Email directly in your Email Inbox by clicking here.

Please select the topic from the list below to watch / download the video:

Chapter 2: Sound (30 videos)

2.1: Sound Waves

  1. How Sound is Produced and Travel
  2. More on How Sound is Produced and Travel
  3. Problem 1-More on How Sound is Produced and Travel

2.2: Characteristics of Sound

  1. Loudness of Sound
  2. Quality of Sound
  3. Pitch of Sound
  4. Problem 1- Pitch of Sound
  5. Sound Intensity and Sound Level
  6. More on Sound Intensity and Sound Level
  7. How Amplitude is Related With Loudness
  8. How Frequency is Related with Pitch1
  9. Problem 1- Sound Intensity and Sound Level

2.3: Reflection (ECHO) of Sound

  1. Reflection of Sound (Echoes)
  2. Problem1-Reflection of Sound (Echoes)
  3. Problem2-Reflection of Sound (Echoes)
  4. Problem 1-Measuring Speed of Sound by Echo Method

2.4: Speed of Sound

  1. Measuring Speed of Sound
  2. More on Measuring Speed of Sound
  3. Measuring speed of Sound by Echoe Method
  4. Problem 1-Measuring The Speed of Sound
  5. Problem 2-Measuring The Speed of Sound

2.5: Noise Pollution

  1. Noise Pollution
  2. Acoustics Protection

2.6: Audible Frequency Range

  1. Audible Frequency Range
  2. Problem 1-Audibility
  3. Problem 1-Audible Frequency Range
  4. Problem 2-Audible Frequency Range

2.7: Ultrasound

  1. Ultrasounds and its Applications
  2. Problem 1-Ultrasound and Its Applications
  3. Problem 2-Ultrasound and its Applications