Across
- 2. A vehicles capacity to gain speed
- 3. The action of making smaller
- 4. A change in the frequency of sound, light, or other waves as the source and observer move towards (or away from) each other.
- 5. Space has no ------------- (13 Letters) force
- 7. The difference between crests of a wave
- 9. Famous scientist starting with the letter "N" famous for his gravitational theory
- 10. The opposite of Compression that reduces an items density
- 13. The amount of mass something has
- 14. The course that someone or something moved
- 16. A formal announcement
- 18. To remain unchanged
Down
- 1. Waves are usually - - - - - - - - - - - - - - - (15 letters)
- 2. Measures Electromagnetic frequency waves
- 6. running lengthwise rather than across
- 8. The speed of something in a given direction
- 11. The rate at which something moves
- 12. A space void of matter and sound
- 15. The number of wavelengths that pass a particular point
- 17. Strength or energy as an attribute of physical action or movement