Modern Physics PC 301 Intoduction to SR units

Modern Physics PC 301 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

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

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. +b Home Frame (x, y, z) Other Frame (x', y', z') t=0 when frames at same point

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

Frame Dependence & Independence

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

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