1st Year Physics Chapter 3 Notes (New Book 2025-26): Circular and Rotational Motion – All Punjab Boards
Students who are comfortable with straight-line motion sometimes find Chapter 3 harder than expected. Things that turn and spin are less easy to picture, and familiar ideas reappear in a new form. That is why steady practice with worked questions matters here. These notes are written for Circular and Rotational Motion, the third chapter of the PECTAA Class 11 Physics textbook taught across Punjab from the 2025-26 session.
Inside the file you will find MCQs, short questions with answers, long questions with answers, solved numericals, and a solved version of the textbook exercise. There is no fee, and the download sits on this same page.
Make sure any notes you use belong to the new syllabus. The Class 11 physics book that Punjab followed until 2025-26 grouped its topics into different chapters, so a guide made for it may not follow the new Chapter 3 or its exercise.
These notes are for FSc students of the Bahawalpur, Dera Ghazi Khan, Faisalabad, Gujranwala, Lahore, Multan, Rawalpindi, Sahiwal and Sargodha boards. The rest of this page covers what each part is for, how the parts connect with the paper, and how to plan your study of a chapter that asks you to picture motion clearly.
About Chapter 3 in brief
Circular and Rotational Motion, as its title shows, deals with objects that move along a circle or turn about an axis. In general terms, it describes this kind of motion with its own set of quantities and links them to the causes behind it. This page focuses on the notes for the chapter rather than on teaching its content.
What’s inside the 1st year physics chapter 3 notes
The notes come in five parts. Below is a short account of what each part offers and a suggestion for getting more out of it.
MCQs
The file includes a set of multiple-choice questions on Chapter 3. In a chapter where linear and rotational ideas run in parallel, MCQs help you check that you have not mixed one with the other.
Rather than racing through, read each option and decide why the wrong ones are wrong. Saying that reason to yourself in a few words is slower at first, but it shows whether you really understand the idea or are only recognising a familiar phrase. Write down any idea you could not explain and look it up in the textbook.
Short questions with answers
This part is made up of short questions and their answers. On this chapter, they commonly ask you to define a term, compare a rotational quantity with its straight-line partner, or give a reason for an everyday observation.
Comparison questions reward a tidy structure: one line on the first idea, one on the second, and one on how they differ. While reading the answers in the notes, pick out the main point of each, then practise writing short replies of your own in no more than three or four sentences.
Long questions with answers
This part gives detailed answers to long questions. Extended questions on circular and rotational motion can ask you to explain a concept step by step, set out reasoning in a logical order, or link several ideas together.
A simple sketch drawn by you often makes such an answer easier to follow. When you practise, decide where a labelled diagram would help and add it to your own written answer, keeping it small and neat. Then check that your text and your sketch say the same thing.
Numericals (solved)
This part contains numerical problems on Chapter 3 with their solutions. Problems on turning motion often require you to switch between related quantities, so they are a good check on whether you understand how those quantities connect.
When you solve a problem yourself, start by writing the known values with their units and naming the unknown. Then choose the formula and note any unit you need to convert before substituting. Mixing up units is an easy slip to make here, so a final check of the answer’s unit is worth the few seconds it takes.
Solved exercise
The solved exercise takes you through the questions at the end of Chapter 3 in the textbook. The exercise reflects what the chapter itself expects you to be able to do, so it is a natural place to practise for class tests.
To learn from this part instead of simply reading it, cover the solution with a sheet of paper and reveal it one line at a time. Before each new line appears, predict what it will say. The moment your prediction fails is the moment to stop and think.
Why these notes are useful
Circular and rotational motion needs both clear ideas and confident problem-solving, and the file supports both.
- Prepared with the new syllabus in mind. The notes follow Chapter 3 as it appears in the new edition.
- Concept checks and problem practice together. MCQs and written answers test understanding, while the numericals and exercise test how you apply it.
- Five parts in one download. MCQs, short and long answers, numericals and the worked textbook exercise for Chapter 3 come together.
- Free of charge. The file is available to download at no cost.
Remember that notes are a companion to the textbook and to your teacher’s lessons. They help you check and practise; the understanding still has to be built by you.
Which exam questions these notes help with
The table pairs each part of the file with a question type that usually appears in the intermediate physics paper. The pattern, number of questions and marks come from your board, so look at its official pairing scheme for the current session.
| Part of the notes | Question type it can support |
| MCQs | Multiple-choice questions, objective part |
| Short questions with answers | Short answers, subjective part |
| Long questions with answers | Detailed explanatory answers |
| Numericals (solved) | Numerical problems, subjective part |
| Solved exercise | Questions linked to the textbook exercise |
You may hear claims about which Chapter 3 questions are “coming” this year. Such predictions are guesses and differ between sources. Preparing the chapter and its exercise thoroughly, then checking your board’s pairing scheme, puts you on firmer ground.
How to study with these notes
Picturing the motion clearly is half the work in this chapter. This plan builds that picture first and then moves to practice:
- Keep a pencil beside you as you read the chapter. Sketch each situation the textbook describes, even roughly.
- Pair the quantities. Make a two-column list that matches each straight-line quantity you already know with its rotational counterpart.
- Work the exercise in rough first. Try the conceptual items and the problems before opening any solution.
- Check your work against the solved exercise. Cover each solution and reveal it one line at a time, predicting each line before you see it.
- Work the solved numericals. Write the given data, the unknown, the formula and the units for each problem, convert where needed, and then compare.
- Practise written answers. Rewrite two short answers and one long answer from memory, adding a sketch where it helps.
- Leave the MCQs for last. Note each idea you got wrong and reread it in the textbook.
Return to your two-column list during revision. It is a quick way to refresh the links that this chapter depends on.
Who should use these notes
The notes are meant for Class 11 students in Punjab who study physics from the new 2025-26 textbook. That includes FSc pre-engineering and pre-medical students, along with private candidates and any other students taking physics under a Punjab board.
Check with your college or board if you are not certain that the new book applies to you.
Download the notes
The download for the 1st year physics chapter 3 notes is free and stays on this page; you will not be redirected elsewhere.
Keep your sketches and two-column list with the file so that your revision material for this chapter is all in one place.
Frequently asked questions
Which book are these Chapter 3 notes based on?
They are based on the PECTAA Class 11 Physics textbook used in Punjab from 2025-26, specifically Chapter 3, Circular and Rotational Motion.
Why do I keep confusing rotational and straight-line quantities?
The two sets of ideas are closely related, which makes them easy to mix. A side-by-side list of matching quantities, revised often, helps you keep them apart.
What parts are included in this file?
The file holds MCQs, short and long questions with their answers, solved numericals, and solutions to the textbook exercise.
Should I draw diagrams in my answers?
A small labelled sketch can make an explanation clearer. Follow your teacher’s guidance on when a diagram is expected for a particular question.
Can I download the notes without paying?
Yes. The Chapter 3 file is free on this page.