Physical science

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