Physical science

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