PNB Physics (EM) 2023-24 — Class 9 Punjab Board book
Official Punjab Curriculum and Textbook Board (PCTB) Physics textbook for Class 9 (English Medium). Neeche poori kitab online parhein ya official PDF download karein — bilkul muft.
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This is the official Practical Notebook: Physics, Grade IX (English Medium, 2023-24 edition) from the Punjab Curriculum and Textbook Board, Lahore. It contains the complete set of board practicals across seven chapters: Measurements (vernier callipers and screw gauge work), Kinematics (acceleration down an inclined plane and g by free fall), Dynamics (limiting friction and Atwood's machine), Turning Effect of Forces (force table, vector addition and the principle of moments), Gravitation (the simple pendulum experiments that determine g), Properties of Matter (the helical spring, Archimedes principle and density), and Thermal Properties of Matter (specific heat by the method of mixtures and the latent heat of fusion). The opening sections build the practical toolkit every student needs first: general laboratory safety procedures, a full skills build-up on displaying data on graphs, and a reference of useful data and formulae.
It is written for the technical-stream and science students who must perform, record and defend each experiment in the practical examination. Unlike the theory textbook, every experiment here follows the lab workflow — background information, least count and zero error of the instrument, step-by-step procedure, observation tables, graph work and precautions — which is exactly what examiners mark. That applied angle is the heart of the tech stream: instead of only reading about moments or specific heat, students learn to measure, plot and calculate like a working technician, with instruments (vernier callipers, screw gauge, metre rod, stopwatch) they will meet again in any technical job.
Aham mozuaat
Chapter 1: Measurements
Page 1
Experiment 1.1: Measure the area of cross-section of a solid cylinder by measuring its diameter with vernier callipers.
Page 1
Experiment 1.2: Determine the volume of a solid cylinder by measuring its length and diameter.
Page 5
Experiment 1.3: Measure the thickness of a metal strip or a wire by using a screw gauge.
Page 7
Chapter 2: Kinematics
Page 12
Experiment 2.1: Find the acceleration of a ball rolling down an inclined angle iron by drawing a graph between 2S and t².
Page 12
Experiment 2.2: Find the value of g by free fall method.
Page 16
Chapter 3: Dynamics
Page 19
Experiment 3.1: Investigate the relation between force of limiting friction and normal reaction to find the co-efficient of sliding friction between a wooden block and horizontal surface.
Page 19
Experiment 3.2: Find the force of limiting friction by rolling a roller on a horizontal surface.
Page 22
Experiment 3.3: Determine the value of g by Atwood's machine.
Page 24
Chapter 4: Turning Effect of Forces
Page 27
Experiment 4.1: Determine the resultant of two forces graphically by using a horizontal force table.
Page 27
Experiment 4.2: Find the unknown weight of an object by using vector addition of forces.
Page 30
Experiment 4.3: Verify the principle of moments by using a metre rod balanced on a wedge.
Page 32
Experiment 4.4: Find the unknown weight of an object by using principle of moments.
Page 35
Experiment 4.5: Find the tension in the strings by balancing a metre rod on the stands.
Page 37
Chapter 5: Gravitation
Page 40
Experiment 5.1: Study the effect of length of simple pendulum on its time period and hence, find the value of g by calculation.
Page 40
Experiment 5.2: Prove that time period of a simple pendulum is independent of mass of the pendulum.
Page 44
Experiment 5.3: Prove that time period of a simple pendulum is independent of amplitude of vibration.
Page 46
Chapter 7: Properties of Matter
Page 48
Experiment 7.1: Determine the relationship between load and extension (Helical spring) by drawing a graph.
Page 48
Experiment 7.2: Find the density of a body heavier than water by Archimedes principle.
Page 52
Experiment 7.3: Find the density of a liquid using a disposable syringe.
Page 55
Chapter 8: Thermal Properties of Matter
Page 57
Experiment 8.1: Find the specific heat of a given solid by the method of mixture using polystyrene cup.
Page 57
Experiment 8.2: Draw a graph between temperature and time when ice is converted into water and then to steam by slow heating.
Page 60
Experiment 8.3: Find the latent heat of fusion of ice.
Page 64
Ustad ka mashwara
Practical mein sab se zyada number graph aur least count se bantay hain — bachon ko vernier calliper aur screw gauge ki least count pehlay din yaad karwa dein, aur har experiment ka graph khud bananay ki aadat dalwain.
— Rehman Ahmad Chaudhary, Head Teacher, GPS 117 DB(BJ), Yazman
Aksar pooche gaye sawalat
Is this the theory book or something else?
This is the official PCTB Practical Notebook: Physics, Grade IX (English Medium, 2023-24) — the lab book, not the theory textbook. It holds all 22 board experiments with background information, procedures, observation tables and graph work, plus safety procedures and a graph-plotting skills build-up at the start.
How many chapters and experiments does it contain?
Seven chapters (Chapters 1, 2, 3, 4, 5, 7 and 8 — Chapter 6 does not appear in this practical notebook) holding 22 experiments in total: 3 each on Measurements, Dynamics, Gravitation, Properties of Matter and Thermal Properties; 2 on Kinematics; and 5 on the Turning Effect of Forces.
Which experiments matter most for marks?
The graph-based experiments carry special weight because graph plotting is marked separately: Experiment 2.1 (acceleration from a 2S–t² graph), 5.1 (simple pendulum), 7.1 (load–extension) and 8.2 (temperature–time). The viva almost always asks least count and zero error of the vernier callipers and screw gauge from Chapter 1.
Is there an Urdu Medium version of this notebook?
Yes — the Urdu Medium edition of the Physics 9 practical notebook is also available in this series (slug pnb-physics-2). The experiments and page plan are the same; only the language of instruction changes.
Class 9 ki mazeed kitabein
Disclaimer
Ye kitab Punjab Curriculum and Textbook Board (PCTB) ki official publication hai. Download aur online reading PECTAA ki official e-books listing (pectaa.edu.pk) se faraham ki jati hai — sirf talimi maqsad ke liye. Malkiyat PCTB ki hai; is site ka koi dawa nahi.