10211408
Description
Flashcards by Selina Koo, updated more than 1 year ago
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Created by Selina Koo
over 6 years ago
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| Question | Answer |
| Einstein's Special Theory of Relativity | 1. The laws of physics are the same for all objects moving in the same frame of reference at a constant velocity. 2. The free space velocity of light is constant for all observers, regardless of their state of motion. |
| Inertial Frame | - at a constant velocity or at rest - does not experience acceleration - no experiment to determine who is stationary |
| Addition of Velocities | Velocities are not arithmetically additive. - two people observing the same object will see different velocities. |
| Time | As speed approaches the speed of light, time dilates: their clock appears to run slow. |
| Length | As speed approaches the speed of light length contracts in the direction of motion. |
| Mass/Momentum | As speed approaches the speed of light mass increases exponentially. Momentum must be conserved. |
| Colour | As speed approaches the speed of light the colour changes due to the Doppler Shift/Effect. |
| Energy | E = m\(c^2\)\(\gamma\) |
| Time and Mass | |
| Length | |
| Momentum | |
| Simultaneity | - simultaneous events only occur simultaneously in certain frames of reference - the sequence is different for the moving frame |
| Luminiferous Aether | Light bearing aether - what they used to think light travelled through - thought that waves needed a medium to travel through |
| Michaelson-Morley Experiment (1887) - to test for Luminiferous Aether - two beams of light travel in different planes - there should be a refraction pattern due to time difference - the experiment was a failure |
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