Across
- 1. the tendency of an object to resist a change in its motion
- 3. A disturbance that transfers energy from place to place
- 9. energy energy of motion
- 10. the degree of compactness of a substance, mass divided by volume.
- 11. A material that does not allow heat or electrons to move through it easily.
- 12. A form of matter that has a definite shape and volume
- 16. the amount of matter in an object
- 17. A machine that converts mechanical energy into electrical energy
- 19. the number of complete wavelengths that pass a point in a given time
- 21. A measurement of how much solute exists within a certain volume of solvent
- 24. bond A chemical bond formed when one or more electrons are transferred from one atom to another
- 26. a path for an electrical current to flow around
- 27. A push or a pull
- 28. A result of a force moving an object a certain distance.
- 29. An apparent change in the frequency of a sound when the source or observer is moving
- 30. The process by which two or more small nuclei fuse to make a bigger nucleus and release energy
- 31. A pure substance made of only one kind of atom
- 33. A substance made up of atoms of two or more different elements joined by chemical bonds
- 34. A horizontal row of elements in the periodic table
- 37. The bouncing back of a wave when it hits a surface through which it cannot pass.
- 38. any compound that forms H+ ions in solution, tastes sour, and has a pH less than 7
- 40. a state of matter that consists of free-moving ions and electrons
- 43. smallest unit of most compounds, two or more atoms held together by covalent bonds
- 46. Electrons on the outermost energy level of an atom
- 48. Material through which a wave travels
- 49. The force of attraction or repulsion of magnetic materials
Down
- 2. Elements in group 8A of the periodic table. Have no charge and are gases
- 4. A flow of electric charge that regularly reverses its direction.
- 5. A nuclear reaction in which a nucleus splits into smaller nuclei with the simultaneous release of energy
- 6. stored energy
- 7. A state of matter that has no definite shape but has a definite volume.
- 8. positively charged subatomic particles
- 13. A measure of the average energy of motion of the particles of a substance.
- 14. A state of matter with no definite shape or volume
- 15. The transfer of heat by the movement within a liquid or gas
- 17. A force of attraction between objects that is due to their masses.
- 18. The attractive force that holds atoms together
- 20. a device that changes electrical energy to mechanical energy
- 22. A state of balance in which solute is dissolving into the solution and coming out of the solution
- 23. Atoms of the same element that have different numbers of neutrons
- 25. A homogeneous mixture of two or more substances in which a solute is dissolved in a solvent
- 32. A form of energy caused by the movement of electrons.
- 35. a bond formed when atoms share one or more pairs of electrons
- 36. a compound that produces hydroxide ions in solution, tastes bitter and feels slippery
- 39. A measure of the force of gravity on an object
- 41. The rate at which velocity changes
- 42. Speed in a given direction
- 44. The direct transfer of heat from one substance to another by touching.
- 45. an element that is shiny and that conducts heat and electricity well, locate on the left and middle of the periodic table
- 47. Smallest particle of an element that has its properties