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Physics

Class 9

Physics for Class 9 (Matric Part 1, Class 9), Punjab board, following the new PECTAA book: notes, key terms, solved examples, short questions and MCQs, explained in English, Urdu and Roman Urdu. Every open lesson is free. A chapter with no lesson yet says Coming soon.

Start · Physical and Non-Physical Quantities

Chapters

  1. Chapter 1Physical Quantities and Measurements≈ 300 min

    0 of 15 lessons done

    Start with lesson 1 and take your time.

    Start →
  2. Chapter 2KinematicsComing soon
  3. Chapter 3DynamicsComing soon
  4. Chapter 4Turning Effects of ForcesComing soon
  5. Chapter 5Work, Energy and PowerComing soon
  6. Chapter 6Mechanical Properties of MatterComing soon
  7. Chapter 7Thermal Properties of MatterComing soon
  8. Chapter 8MagnetismComing soon
  9. Chapter 9Nature of ScienceComing soon

A taste of the free chapter

1.1 Physical and non-physical quantities: can you put fear on a ruler?

A physical quantity can be measured with an instrument and written as a number with a unit. A non-physical quantity depends on the observer, so it can only be described or compared.

Try one MCQ

Which one is a non-physical quantity?

  1. (a) Distance
  2. (b) Density
  3. (c) Wisdom
  4. (d) Temperature
Show answer

(c) Wisdom depends on the observer and no instrument reads it; the other three are measured.

Open the free lesson →Physical and non-physical quantities

How every lesson works

  1. Read: the problem first, then the one rule that solves it.
  2. Key terms: four ideas the board asks about, each with a “why”.
  3. Try it: an interactive you can play with, and a question you answer on screen.
  4. Model answers: board-style questions solved line by line.
  5. Common mistakes: the traps that cost marks every year.
  6. MCQs: five questions, each with the reason behind the answer.
  7. Quick revision: three points to remember before the exam.

What comes next

  • Every chapter of all 7 subjects of your year: Chemistry, Physics, Biology, Maths, Computer Science, English and Urdu.
  • Notes, model answers, common mistakes and MCQs for every lesson.
  • Every step in English, Urdu and Roman Urdu; switch any time.
  • More chapters of the new PECTAA books, added one by one as each is checked against the book.

Every open lesson is free. The rest is coming soon.

More chapters: coming soon

One book, all nine Punjab boards

The same Punjab textbook is used by the boards of Lahore, Rawalpindi, Gujranwala, Faisalabad, Multan, Sargodha, Bahawalpur, Dera Ghazi Khan, Sahiwal. These notes fit your board too.

Questions students ask

Are the lessons really free?
Yes. Every lesson that is open is free for everyone, with all its notes, model answers and MCQs. No sign-up needed to read it.
What about the other chapters?
They are listed in the order of the new PECTAA book and say Coming soon. We add them one by one, each checked against the book.
Does it match my board?
Yes. All nine Punjab boards use the same Punjab textbook, so the chapters, questions and MCQs here fit Lahore, Rawalpindi, Multan and every other Punjab board.
Can I study in Urdu?
Yes. Every explanation is in English, Urdu and Roman Urdu. Science terms stay in English, as they appear in your exam paper.