Across
- 2. is equal to the mass multiplied by the square of the speed of light
- 4. this is a disturbance in the regular elliptical movement pattern of a certain celestial body.
- 6. as the mass of an object becomes massive, the energy needed to move it becomes
- 7. completed his theory of relativity and stated the law of mass energy conversat
- 9. this is a force that pulls the objects with mass together
- 11. described the motion of planets around the sun, now known as kepler's law of planetary motion.
- 13. predicted the theory of electromagnetism and established that lights are also electromagnetic waves.
- 15. introduced the universal law of gravitation uniting terrestrial and celestial theories of motion.
- 17. Which planet is said to be most affected by the gravitational force of the sun?
- 18. is a special type of reference where an observer does not accelerate
- 19. time is the difference in time experience by an observer moving at a constant speed
- 20. studied, observed, and experimented with inclined planes and introduced the law of falling objects.
Down
- 1. an observer perceives length differently while moving at constant speed due to the length
- 3. the fastest speed known to man is equal to the speed of
- 5. according to the theory of relativity, this is the point when an object that becomes black hole must collapse.
- 8. according to general theory of relativity which of the following causes curve in space?
- 10. the part of existence that is measured in minutes, days and years.
- 12. generated and produced radio waves thereby proving the theory of maxwell.
- 14. no two events happen at the same time for two observers is the principle of
- 16. a three dimensional extent in which objects and events have relative position and direction.