Across
- 2. Force exerted per unit area
- 4. Capacity to do work or produce heat
- 6. EFFECT Change in frequency of waves due to motion
- 8. Electromagnetic radiation that is visible to the human eye
- 10. Rate at which an object moves
- 11. Unit of energy
- 12. HOLE Region of space with intense gravitational pull
- 15. Tiny, discrete units of energy
- 17. Amount of matter in an object
- 21. Rate of change of velocity
- 22. Path for electric current to flow
- 25. Speed in a given direction
- 27. Principle that certain properties remain constant in a system
- 28. STRENGTH Maximum stress a material can withstand without permanent deformation
- 29. Push or pull on an object
- 30. Bending of waves around obstacles or openings
Down
- 1. MODEL Model of the atom with electrons in specific energy levels
- 3. All of space, matter, and energy
- 5. Force that attracts objects toward each other
- 7. Study of light and its properties
- 9. Measure of the average kinetic energy of particles
- 13. Electromagnetic radiation with high energy
- 14. Resistance to change in motion
- 16. Relating to atomic nuclei or nuclear reactions
- 18. Relating to atoms or atomic structure
- 19. Disturbance that transfers energy through a medium
- 20. Transfer of thermal energy between objects
- 23. ENERGY Energy of motion
- 24. Opposition to the flow of electric current
- 26. GRAVITY Absence of gravitational forces