31.2 Contemporary Physics: classical and modern This theory integrated many phenomena such as: X-ray, radioactivity, electron, radiation of blackbody, photoelectric effect, quantization of angular momentum and energy. Kinematics and dynamics Classical physics Electromagnetism Thermodynamics Relativity (special and general) Modern physics Quantum mechanics 81.3 Why must we study physics I. What is physics? Physics studies fundamental structures fundamental interactions of substances and fundamental laws of motion of matter in various structure level Physics is foundation to all natural sciences technologies and engineerings Physics education should be the education of science diathesis 66 §1.2 Contemporary Physics: classical and modern This theory integrated many phenomena such as: X-ray, radioactivity, electron, radiation of blackbody, photoelectric effect, quantization of angular momentum and energy. Classical physics Modern physics Kinematics and dynamics Electromagnetism thermodynamics Relativity(special and general) Quantum mechanics §1.3 Why must we study physics 1. What is physics? Physics is foundation to all natural sciences, technologies and engineerings. Physics education should be the education of science diathesis. Physics studies fundamental structures , fundamental interactions of substances, and fundamental laws of motion of matter in various structure level