Across
- 3. the substance that transfers the energy from one substance to another substance
- 5. the top point of a wave
- 7. rate at which an object changes its position
- 9. celestial objects that shine due to the light energy given off by nuclear reactions
- 11. type of wave with the lowest frequency
- 14. the only part of the EM spectrum we can see
- 16. large cloud of gas and dust in interstellar space. where stars are formed
- 18. the number of waves that pass a fixed point in a given amount of time
- 19. brightness of a celestial object
- 20. a cloud of gas and dust in space tat develops into a star
- 22. type of wave with the highest frequency
- 24. energy made by movement of electrons
Down
- 1. the SI unit of work or energy
- 2. energy due to motion
- 4. stored energy
- 6. force that causes things to move
- 8. energy stored in chemical bonds
- 10. the bottom point of a wave
- 12. a disturbance that carries energy through matter or space
- 13. a system of stars, cosmic dust and other celestial objects that are held together as a group by gravity
- 15. an enormous explosion that destroys a star
- 17. kinetic energy by moving electrons
- 21. distance a wave travels in a given amount of time
- 23. the distance from the center line to the top of a crest or to the bottom of a trough