Across
- 1. the change in direction of a wave passing from one medium to another caused by its change in speed
- 3. the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay
- 5. the act or process of liquefying or rendering plastic by heat
- 8. in referring to matter that is not solid
- 9. a measure of the amount of matter in an object
- 11. the support force exerted upon an object that is in contact with another stable object
- 13. a state of matter that has no fixed shape and no fixed volume
- 17. two forces acting on an object are not equal in size
- 18. the basic unit of a chemical element.
- 19. one of the three main states of matter, along with liquid and gas
- 21. when a neutron slams into a larger atom
- 24. the study of a state of matter comprising charged particles
- 29. a form of energy that results from the flow of charged particles
- 31. processing thoughts and feelings about an incident
- 33. a thing that is composed of two or more separate elements; a mixture.
- 34. the quality of being hot; high temperature.
- 36. a positive charge equal in magnitude to a unit of electron charge
- 37. any material capable of attracting iron and producing a magnetic field outside itself
- 38. a subatomic particle of about the same mass as a proton but without an electric charge
- 40. any atom or group of atoms that bears one or more positive or negative electrical charges
- 42. a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim
- 43. a scalar quantity that refers to "how much ground an object has covered
- 45. the process of light bending around an obstacle or spreading out after it moves through a small space
- 46. relating to, or utilizing a shift in frequency
- 49. an electromotive force or potential difference expressed in volts.
- 50. a mechanical device consisting of a grooved wheel turned by a cord or chain with a rigidly attached axle
- 52. the controlled use of nuclear energy
Down
- 2. one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table
- 4. the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position.
- 6. Tow forces equal in size
- 7. energy that comes from a source and travels through space at the speed of light.
- 10. an occupation or something that someone does or has done
- 12. branches so that the current divides and only part of it flows through any branch
- 14. property of a body by virtue of which it opposes any agency that attempts to put it in motion
- 15. disturbance or variation that transfers energy progressively from point to point in a medium
- 16. units of distance divided by time
- 20. the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.
- 22. he transfer of heat between two parts of a stationary system, caused by a temperature difference between the parts
- 23. how fast an object is moving
- 25. solid, liquid, and gas are
- 26. the flow of electrical charge carriers like electrons.
- 27. a measure of the heaviness of an object
- 28. strength or energy exerted or brought to bear
- 30. formed when two or more other substances act upon one another
- 32. motion remains in uniform motion in a straight line u
- 35. comprises a path along which the whole current flows through each component
- 39. equal to one event per second
- 41. a bar used to pry or move something
- 44. is a mechanical device that changes the direction or magnitude of a force
- 47. a stable subatomic particle with a charge of negative electricity
- 48. any substance composed of identical molecules consisting of atoms of two or more chemical elements
- 51. the capacity for doing work