Introduction to physics--Branches of Physics--Importance of physics
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Physics is the study of fundamental laws governing natural phenomena. It deals with the most basic aspects of nature, including force, motion, heat, sound, matter, electricity, magnetism, and light. Physics seeks to discover the basic rules that describe physical phenomena through observation and experimentation. Some key ideas presented are: - Physics can be divided into classical and modern physics, with classical emerging before the 19th century covering mechanics, thermodynamics, electromagnetism, and optics, while modern physics emerged after covering atomic, nuclear, and quantum physics. - Important branches include mechanics, wave physics, thermodynamics, electromagnetism, optics, atomic physics, nuclear physics, and quantum mechanics. -
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Introduction to physics--Branches of Physics--Importance of physics
- 2. Sunrise in the morning Sunset in the evening
- 3. Heat & light from burning Yellow orange colour of sky
- 4. Falling of objects Birds flying in the sky
- 5. Formation of ocean waves Sinking of objects
- 6. Spherical shape of soap bubbles Moon orbiting around the earth
- 7. • In order to play cricket, football, chess, hockey or any other game we follow some rules • Similarly, the physical phenomena of our nature follow some rules or principles
- 8. DISCOVER BASIC LAWS NATURE PHYSICAL PHENOMENA OBSERVATION Falling of an apple from a tree Orbiting of the moon around the earth Newton Observed Laws of motionLaw of Gravitation
- 9. Physics is the study of various physical phenomena and the fundamental laws governing them. PHYSICS NOTE: The laws of physics are not invented by people, they are only discovered
- 10. • Physics is a natural science (Deals with natural phenomena) • Physics is a physical science (Deals with our physical world) • Physics is a fundamental science (Deals with most basic things of nature)
- 11. Force Motion HeatSound Matter Electricity Magnetism light MOST BASIC THINGS OF NATURE
- 12. Natural Phenomena Physical Chemical Biological Formation of rainbow Formation of clouds Conversion of wood into ash Rusting of iron Pumping of blood by heart Exchange of gases through lungs
- 14. PHYSICS Classical Physics Modern Physics Developed before 19th century Developed after 19th century • Classical mechanics • Atomic physics • Wave physics • Thermodynamics • Electromagnetism • Optics • Nuclear physics • Quantum mechanics
- 15. CLASSICAL MECHANICS Classical mechanics is the study of effects produced by a force. Motion of a car Loading on a bridge Working of hydraulic machines
- 16. WAVE PHYSICS Wave physics is the study of effects produced by a vibration or an oscillation. Sound produced by a violinTo and fro motion of swing Waves on water surface
- 17. THERMODYNAMICS Thermodynamics is the study of effects produced by a heat. Expansion of mercury in a thermometer Working of an engine Working of a refrigerator
- 18. ELECTROMAGNETISM Electromagnetism is the study of effects produced by an electric charge or a magnet. Working of a speaker Generation of electricityWorking of an UPS inverter
- 19. OPTICS Optics is the study of effects produced by light. Image produced by a plane mirror Colour of the sky Eyesight correction using spectacles
- 20. ATOMIC PHYSICS Atomic physics is the study of the structure of an atom and characteristics of subatomic particles. Working of a LASERNeon sign board Working of X-Ray Machine
- 21. NUCLEAR PHYSICS Nuclear physics is the study of an atomic nuclei and their constituent particles. Carbon dating Working of Radiotherapy Machine Nuclear power generation
- 22. QUANTUM MECHANICS Quantum mechanics deals with the behavior of matter and energy at atomic scale. Magnetic Resonance ImagingSmart phones Electron microscope
- 24. Without knowledge of fundamental principles of physics Biologists cannot understand • How brain controls our body? • How plants carryout photosynthesis?
- 25. Without knowledge of fundamental principles of physics Chemists cannot understand • Why firework produce different colours? • How Goldplating works?
- 26. Without knowledge of fundamental principles of physics Geologists cannot understand • Formation and eruption of lava • Why earthquake occurs?
- 27. Without knowledge of fundamental principles of physics Astronomers cannot understand • How planets revolve around the sun? • Why stars shine in night sky?
- 28. PHYSICS The Foundation Of Science
- 29. Without knowledge of fundamental principles of physics Civil Engineers cannot design buildings, bridges, dams, overhead water tanks etc.
- 30. Without knowledge of fundamental principles of physics Mechanical Engineers cannot design automobiles, space vehicles, wind turbines, machines etc.
- 31. Without knowledge of fundamental principles of physics Electrical Engineers cannot design power substations, transformers, motors, electrical panels etc.
- 32. Without knowledge of fundamental principles of physics Electronic Engineers cannot design circuits, antenna, radar system, robotic arm etc.
- 33. PHYSICS The Foundation Of Engineering
- 34. THANK YOU