Class notes
Unit 5 - Modern Physics
- Course
- SPH4U (SPH4U)
- Institution
- White Oaks Secondary School
In class notes from the fifth unit of grade 12 physics, modern physics.
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Unit 5 - Physics Notes, (1) Notes - Frames of Reference and Relativity
Monday, May 13, 2019 10:20 AM
- What is the speed of propagation of light? There was a time when it
was thought that light could propagate instantaneously, at infinitely
high speeds. All observations supported such a claim. For example,
it was noticed that sound needed some time to cover a large
distance, demonstrated, for instance, by the occurrence of echo.
However, in the case of light no such effect was observed.
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- The first measurement of the speed of light, in laboratory
conditions, was conducted in 1849 by a French physician named
Armand Fizeau
Frames of Reference
- When we describe a moving body - ex. By stating its velocity or its
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