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Modern Physics PC301

Explore the principles of special relativity, including inertial reference frames and Galilean transformations for position, velocity, and acceleration. Review the entire syllabus and understand Galilean relativity using 2-minute questions. Visualize frames of reference and relative motions. Understand the principle of relativity - "The laws of physics are the same in all inertial reference frames." Everything strange and wonderful about special relativity follows logically from this statement. Learn about different types of reference frames, synchronized clocks, and events described by spacetime coordinates.

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Modern Physics PC301

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  1. Modern PhysicsPC301 Intoduction to SR units Principle of Relativity – Define Inertial Reference Frames Galilean transformations for position, velocity and acceleration Discuss Lab briefly Discuss the entire syllabus Review Galilean Relativity using the 2-minute questions

  2. Visualizing Frames of Reference and Relative Motions

  3. The Principle of Relativity "The laws of physics are the same in all inertial reference frames." EVERYTHING strange and wonderful about special relativity follows as a "logical consequence" of this statement.

  4. Types of Reference Frame Inertial Reference Frame Non-inertial Reference Frame

  5. Visualizing Definitions Reference Frame Synchronized clock Lattice Event * Spacetime Coordinate (t,x,y,z) Observer

  6. Comprehensive Statement An event is an occurrence happening at a definite place in space and instant in time described by a spacetime coordinates (t,x,y,z) as measured by an observer in a reference frame defined as a rigid cubical lattice of synchronized clocks.

  7. Newtonian Viewpoint and Convention Synchronize clocks by carrying master clock from point to point on the lattice. +b Other Frame (x', y', z') Home Frame (x, y, z) t=0 when frames at same point

  8. b x bt x' Galilean Transformations t' = t x' = x - bt y' = y z' = z vx' = vx - b vy' = vy vz' = vz ax' = ax ay' = ay az' = az

  9. Frame Dependence & Independence

  10. b b Newtonian Theory Home Frame? Other Frame? Event? v'=v-b=c-b Home Frame? Other Frame? Event? v'=v+b=c+b Speed of light is Frame Dependent

  11. Homework Questions • See Problems Assigned! Due Wed. by 8:00am

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