Across
- 3. - the branch of science concerned with the nature and properties of matter and energy.
- 4. entities - Like stars and galaxies are able to warp space
- 6. - Nothing can travel faster than 300,000 kilometers per second (186,000 miles per second).
- 9. - The distance light can travel in a unit of time through a given substance
- 10. - One in which an isolated object appears to be accelerating
- 11. - is a natural phenomenon by which all things with mass are brought toward
- 14. - Has to main postulates
- 17. - The point closest to the sun
- 18. - along a timelike world line is defined as the time as measured by a clock following that line
- 19. - An important aspect of the general theory is the principle of ________.
- 20. - Not absolute property between events
Down
- 1. - a region of space having a gravitational field so intense that no matter or radiation can escape.
- 2. - _________equivalence states that mass is concentrated energy
- 5. - Nonrotating , Nonaccelerating
- 7. - moving object appera to be more massive
- 8. - Time for moving objects appear to slow down
- 12. - The mass ,m being reffered to by the equation
- 13. - Special theory of relativity
- 15. - Measure the earths motion through ?
- 16. - The lenght contraction happens only in the direction of relative motion