Across
- 3. How easily something a substances can scratch other materials.
- 6. sound that goes around.
- 9. a number of protons plus the number of neutrons
- 12. negatively charged particles in the atom
- 14. Speed divided by time.
- 15. the ability of a substance to be rolled into a sheet
- 16. Longest wavelength
- 17. degree to which substance is shiny.
- 19. shortest wavelength with most energy
- 20. The ability to do work.
- 21. Distance traveled per unit of time.
- 22. smallest part of an object
- 25. The speed of an object in a specific direction.
- 26. short wavelengths that have high energy.
- 27. Heat energy.
- 28. Measures the amount of space something takes up.
- 30. An object's resistance t a change in motion.
- 32. transmit information by going through substances.
- 33. Energy in motion.
- 35. the ability to turn a material into a wire
- 38. group of electrons that are located the farthest.
Down
- 1. Created the laws of physics.
- 2. Force of attraction.
- 4. The spectrum of how light travels.
- 5. a positively charged particle in the atom
- 7. Unit of work.
- 8. neutrally charged particle in an atom
- 10. Unit of resistance
- 11. can be used to describe an unknown object.
- 13. Disturbance that travels through a medium.
- 18. The speed of molecules.
- 19. Not specific to describe a matter
- 23. How we see in.
- 24. the number of protons a element has
- 29. Lets you see your bones
- 30. atoms of the same element can have different number of neutrons
- 31. energy that is stored
- 34. Detected as heat.
- 36. atoms can gain or lose valence electrons.
- 37. How much matter or mass there is in a given amount of space