【PEP】High School Physics Compulsory Volume 2

📚 Content Summary

This textbook is the second volume of the compulsory high school physics series published by the People's Education Press. It covers four core modules: projectile motion, circular motion, gravitation and space exploration, and the conservation of mechanical energy. Designed to help students develop a scientific understanding of motion, master fundamental laws of mechanics, and explore applications of physics in astronomy and aerospace.

Uncover the mysteries of mechanics—from ground-level projectiles to interstellar travel.

Author: Institute of Curriculum and Textbooks, Physics Curriculum and Textbook Research and Development Center, People's Education Press

Acknowledgments: Approved by the National Textbook Committee Expert Committee in 2019; Second Prize for the First National Outstanding Textbook Award

🎯 Learning Objectives

1. Be able to explain the direction of velocity in curved motion and its conditions of occurrence.
2. Master the vector rules for combining and resolving motion, and quantitatively describe planar motion in a Cartesian coordinate system.
3. Confirm through experimental evidence that projectile motion consists of uniform linear motion horizontally and free fall vertically.
4. Understand kinematic characteristics: define and calculate linear velocity, angular velocity, period, and rotational speed; grasp proportional relationships among physical quantities such as v = \omega r.
5. Master dynamic principles: understand the concept, origin, and magnitude expressions of centripetal force (F_n = m\omega^2r = m\frac{v^2}{r}), and investigate its patterns through experiments.
6. Develop comprehensive analytical skills: analyze force characteristics in non-uniform circular motion and general curved motion, and understand the effects of net force in normal (centripetal) and tangential directions.
7. Master key laws: understand and apply Kepler’s three laws to describe celestial motion; proficiently use the law of universal gravitation to solve problems involving forces and motion of celestial bodies.
8. Engineering applications: understand the physical meaning of the three cosmic velocities, calculate masses of celestial bodies and satellite orbital parameters, and grasp the fundamentals of artificial satellites and manned spaceflight.
9. Physical concepts: recognize the achievements and scope of Newtonian mechanics, begin to form a relativistic view of spacetime, and understand the relativity of time and space under high-speed motion.
10. Understand the concept of work, accurately determine positive and negative work, and calculate work done by constant forces and total work.