Across
- 5. a clock consisting of two parallel mirrors with a light particle bouncing back and forth between them. (2 words)
- 8. The measure of the average kinetic energy of the particles in a system.
- 9. the phenomenon for which time flows differently for different inertial observers. (2 words)
- 10. A structure having four dimensions (3 words)
Down
- 1. Extend; become longer.
- 2. The dependence of various physical phenomena on relative motion of the observer and the observed objects, especially regarding the nature and behaviour of light, space, time, and gravity.
- 3. the interval between two events as measured by an observer at rest with respect to the two events. (3 words)
- 4. the rate of change of velocity per unit of time.
- 5. An attribute, quality, or characteristic of something
- 6. rate at which something or someone moves.
- 7. speed of something in a given direction.