1st Year Physics Chapter 5 Notes (New Book 2025-26): Solids and Fluid Dynamics – All Punjab Boards
Chapter 5 joins two areas under one title: the behaviour of solids and the motion of fluids. Students sometimes revise one half carefully and skim the other, only to find that a test draws on both. These notes for Solids and Fluid Dynamics, Chapter 5 of the new PECTAA Class 11 Physics textbook in use across Punjab since the 2025-26 session, bring practice material on this chapter together in one download.
The five parts are MCQs, short questions with answers, long questions with answers, solved numericals, and the solved textbook exercise. The file is free and is downloaded straight from this page.
Old notes may be a poor fit here. Punjab’s previous Class 11 physics book, taught until 2025-26, organised its chapters differently, and a guide written for it may not match the questions or exercise of this new chapter.
FSc students under the Gujranwala, Sahiwal, Lahore, Bahawalpur, Rawalpindi, Faisalabad, Dera Ghazi Khan, Multan and Sargodha boards can all use this file. Below you will find what each part does, how the parts relate to the paper, and a study plan that gives both halves of the chapter fair attention.
About Chapter 5 in brief
Solids and Fluid Dynamics, judging by its title, covers two kinds of matter in two settings. Generally speaking, it looks at how solid materials respond to forces and how liquids and gases behave when they flow. What follows concerns the notes for the chapter; it is not a lesson on the topic.
What’s inside the 1st year physics chapter 5 notes
There are five parts in the Chapter 5 notes. The descriptions below explain the purpose of each and how to work with it alongside the textbook.
MCQs
The MCQs give you a fast way to check both halves of the chapter. Because solids and fluids are treated with different ideas and terms, a mixed set of multiple-choice questions quickly shows which half you are more confident in.
After a set, count your errors on solids and on fluids separately. If one side clearly lags, plan your next study session around it. Repeat the count after a week to see whether the gap has closed.
Short questions with answers
This part contains short questions with written answers. On this chapter they may ask for a definition, a reason behind an observation from daily life, or a brief statement of how a property affects behaviour.
Questions that ask “why” are common in a chapter tied so closely to everyday materials and flowing water or air. As you read the answers, check which physical idea explains each observation. Practise doing the same in your own words: observation first, then the idea that explains it, in a few lines.
Long questions with answers
Long questions come with detailed answers in this part. Extended questions on solids and fluids can ask you to explain a principle in steps, reason from a starting assumption to a result, or describe how a property is understood.
Break each long answer you study into numbered steps on a separate sheet. If a step depends on an assumption, write the assumption beside it. Reproducing the answer later becomes easier when you know not only the steps but also what each one rests on.
Numericals (solved)
This part offers solved numerical problems on Chapter 5. Problems in this chapter can involve quantities that are less familiar than distance or time, so unit handling needs extra attention.
Set out your own attempts in a fixed order: given data with units, the quantity to find, the formula, any conversion needed, then the substitution and the result. Keeping to the same order for each problem, whether it is about solids or fluids, saves you from leaving out a unit or a step. Compare with the solution only once your attempt is finished.
Solved exercise
This part solves the questions at the end of Chapter 5 in the textbook. Since the exercise comes from the book itself, it shows directly what the chapter expects you to manage.
Split the exercise into the questions on solids and the questions on fluids, and attempt one group per sitting. Check your answers against the solutions, then swap groups next time. This keeps your practice balanced across the chapter.
Why these notes are useful
With two areas packed into one chapter, organised material saves time and keeps your revision even.
- Built for the new edition. The notes follow Chapter 5 of the PECTAA textbook introduced in 2025-26.
- One file for a two-part chapter. Practice for the chapter is kept together rather than spread across separate sources.
- Five types of practice. Objective questions, short and long answers, numericals and the solved exercise each support a different skill.
- Free download. The file is offered at no cost on this page.
Notes work best as a check on your own effort. Read the textbook, follow your teacher, and use the file to test and strengthen what you have learned.
Which exam questions these notes help with
Each part of the notes is shown below next to a question type that often appears in the intermediate physics paper. Your board determines the pattern, number of questions and marks, so refer to its official pairing scheme for the current session.
| Part of the notes | Matching question type in the paper |
| MCQs | Multiple-choice questions in the objective section |
| Short questions with answers | Short written answers in the subjective section |
| Long questions with answers | Longer answers that explain a principle or result |
| Numericals (solved) | Numerical questions in the subjective section |
| Solved exercise | Questions drawn from or based on the textbook exercise |
Predictions about which half of Chapter 5 the paper will favour are guesses, whatever their source. Give both halves fair time and use your board’s pairing scheme to guide your final revision.
How to study with these notes
A chapter with two halves needs a plan that rotates between them. Try this sequence:
- Read the solids part of the chapter. Mark the terms and ideas you find unclear.
- Read the fluids part on a different day. Do the same marking, so each half gets a fresh mind.
- Attempt the exercise in two groups. Solids questions in one sitting, fluids questions in the next.
- Correct your attempts using the solved exercise. Note your mistakes under two headings, solids and fluids.
- Practise the numericals. For each problem, write the given data, the unknown, the formula, any conversion and the units before substituting, then compare.
- Rewrite selected answers. Pick short and long answers from both halves and write them from memory.
- Use the MCQs to measure balance. Count errors by half and plan your next session around the weaker side.
As the test draws near, alternate between solids and fluids in short revision blocks rather than finishing one and then the other.
Who should use these notes
Class 11 students in Punjab using the new 2025-26 physics textbook are the intended readers. The file suits FSc pre-engineering and pre-medical students, and it can also serve private candidates and other students who take physics under a Punjab board.
If you are unsure which book your session follows, your college or board can tell you.
Download the notes
The 1st year physics chapter 5 notes can be downloaded free from this page, with no redirection to an outside website.
Keep your two lists of mistakes, one for solids and one for fluids, inside the same folder as the file.
Frequently asked questions
Do these notes cover the new Solids and Fluid Dynamics chapter?
Yes. They are written for Chapter 5, Solids and Fluid Dynamics, of the PECTAA Class 11 Physics book used in Punjab from 2025-26.
Should I study solids and fluids separately?
It helps to learn them in separate sittings at first, then revise them together. The study plan above shows one way to rotate between the two.
Which parts does the Chapter 5 file include?
It contains MCQs, answered short and long questions, solved numericals and the solved exercise from the textbook.
Is the file suitable for pre-medical students?
Yes. Physics is part of the Class 11 course for pre-medical students as well as pre-engineering students, so the notes serve both groups.
Do I have to pay for the download?
No. The Chapter 5 notes are free here.