The 9th Class Physics textbook is a comprehensive guide designed to introduce students to the fascinating world of physics, starting with Chapter 1: Physical quantities and measurements. Authored by esteemed professors, Professor Tahir Hassan and Professor Muhammad Naeem Anwar, the textbook aims to lay a strong foundation in the fundamental concepts of physics.
9th Physics in English
9th Physics in English
- Chapter No.1 Introduction to Biology
- Chapter No. 2 Solving a Biological Problem
- Chapter No.3 Biodiversity
- Chapter No.4 Cells and Tissues
- Chapter No.5 Cell Cycle
Chapter 1: Physical quantities and measurements
Understanding the concept of physical quantities and their measurements.
Introduction to base and derived units.
Importance of accurate measurements in scientific experiments.
Precision and accuracy in measurements.
Significant figures and their significance in expressing measurements.
Different methods of measuring length, mass, and time.
Use of measuring instruments like Vernier calipers, micrometers, and stopwatches.
Chapter 2: Kinematics
The concept of motion and different types of motion.
Distance, displacement, speed, and velocity.
Understanding acceleration and its relation to change in velocity.
Equations of uniformly accelerated motion.
Graphical representation of motion using distance-time and velocity-time graphs.
Projectile motion and its analysis.
Motion of freely falling objects and the concept of acceleration due to gravity.
Chapter 3: Dynamics
Newton’s laws of motion and their applications.
The concept of force and its effects on bodies.
Relationship between force, mass, and acceleration.
Frictional forces and their role in everyday life.
The concept of inertia and its significance in Newton’s first law.
Understanding action and reaction forces in Newton’s third law.
Chapter 4: Turning effect of forces
Introduction to the concept of torque.
Moment of force and its relation to rotational motion.
Equilibrium of rigid bodies under the influence of forces.
Lever system and its applications.
Equilibrium conditions for a body in rotational motion.