Modern Physics PC301 Intoduction to SR units Intoduction to SR units Principle of Relativity – Define Inertial Reference Frames Principle of Relativity.

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Presentation transcript:

Modern Physics PC301 Intoduction to SR units Intoduction to SR units Principle of Relativity – Define Inertial Reference Frames Principle of Relativity – Define Inertial Reference Frames Galilean transformations for position, velocity and acceleration Galilean transformations for position, velocity and acceleration Discuss Lab briefly Discuss Lab briefly Discuss the entire syllabus Discuss the entire syllabus Review Galilean Relativity using the 2-minute questions Review Galilean Relativity using the 2-minute questions

Visualizing Frames of Reference and Relative Motions

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.

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

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

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.

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

Galilean Transformations t' = t x' = x -  t y' = y z' = z v x ' = v x -  v y ' = v y v z ' = v z x  tt x' a x ' = a x a y ' = a y a z ' = a z

Frame Dependence & Independence

Newtonian Theory   v'=v-  =c  Home Frame? Other Frame? Event? Home Frame? Other Frame? Event? v'=v+  =c+  Speed of light is Frame Dependent

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