Physical Science Crossword Puzzle

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Across
  1. 4. a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum
  2. 8. a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
  3. 14. process by which heat is transferred by movement of a heated fluid such as air or water.
  4. 16. an alternating current
  5. 18. the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated
  6. 20. the act of protecting Earth's natural resources for current and future generations
  7. 22. one of the distinct forms in which matter can exist
  8. 24. a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.
  9. 25. the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  10. 26. a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude
  11. 27. measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement
  12. 28. a double inclined plane such that the two sloping surfaces taper to form either a sharp edge or a pointed edge
  13. 30. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
  14. 31. a disturbance that travels through a medium
  15. 32. a material or object that produces
  16. 35. the principal molecule for storing and transferring energy in cells.
  17. 37. the distance between successive crests of a wave
  18. 38. the transfer of internal energy by microscopic collisions of particles and movement of electrons within a body.
  19. 40. the superposition of a large component due to the fluid drag toward the filter barrier and a random component due to brownian motion
  20. 41. the force exerted by magnets when they attract or repel each other
  21. 45. a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
  22. 49. The highest surface part of a wave
  23. 51. the ability to withstand the force or effect of resistance
  24. 52. a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds.
  25. 54. a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bond
  26. 61. caused by or related to heat or temperature
  27. 65. An object at rest stays at rest
  28. 68. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
  29. 69. the basic building block for all matter in the universe
  30. 72. an image or object which is identical in form to another, but with the structure reversed
  31. 73. the quantity of motion of a moving body, measured as a product of its mass and velocity.
  32. 75. the universal force of attraction acting between all matter
  33. 76. the form of energy that is transferred between systems or objects with different temperatures
  34. 78. the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced.
  35. 80. a usually round part of most cells that is enclosed in a double membrane, controls the activities of the cell
  36. 81. the chemical element of atomic number 13, a light silvery-gray metal.
  37. 83. vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
  38. 86. small regions in which the magnetic direction of all the atoms are aligned in the same directions
  39. 89. Any alteration of a substance from its original shape, size and state
  40. 90. the change of energy from one form to another.
  41. 91. the superposition of a large component due to the fluid drag toward the filter barrier and a random component due to brownian motion.
  42. 92. the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.
  43. 95. If two individual forces are of equal magnitude and opposite direction
  44. 96. a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
  45. 97. the rate at which heat is transferred by conduction through a unit cross-section area of a material
  46. 98. stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
  47. 99. a soft metal core made into a magnet by the passage of electric current through a coil surrounding it
Down
  1. 1. interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude
  2. 2. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
  3. 3. an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other.
  4. 5. the measure of hotness or coldness expressed in terms of any of several scales
  5. 6. a measure of how much a force is increased by using a tool or machine
  6. 7. two forces acting on an object are not equal in size
  7. 9. a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy between physical systems
  8. 10. the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
  9. 11. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  10. 12. chemical compound composed of ions held together by electrostatic forces termed ionic bonding
  11. 13. light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy
  12. 15. the emission or transmission of energy in the form of waves or particles through space or through a material medium
  13. 17. a wave vibrating at right angles to the direction of its propagation.
  14. 19. proceeding or acting in a direction toward a center or axis centripetal acceleration of a body
  15. 21. An individual form of life
  16. 23. simple machine made of a rigid beam and a fulcrum
  17. 29. of or relating to the motion of material bodies and the forces and energy associated therewith.
  18. 33. any of a group of single-celled prokaryotic organisms
  19. 34. a plane surface that makes an oblique angle with the plane of the horizon.
  20. 36. a circuit in which the electric current passes through two or more branches or connected parts at the same time before it combines again.
  21. 39. region at each end of a magnet where the external magnetic field is strongest
  22. 42. the act or process of changing completely
  23. 43. the rate at which someone or something is able to move or operate.
  24. 44. the process of something moving or changing place, or even just changing position
  25. 46. the chemical element of atomic number 56, a soft white reactive metal of the alkaline earth group.
  26. 47. circuit that comprises a path along which the whole current flows through each component
  27. 48. the lowest temperature that is theoretically possible, at which the motion of particles that constitutes heat would be minimal
  28. 50. when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.
  29. 53. a vector whose length is the shortest distance from the initial to the final position of a point P undergoing motion.
  30. 55. a value that represents the sum of values divided by the number of values in the set
  31. 56. wheel that carries a flexible rope, cord, cable, chain, or belt on its rim
  32. 57. the mass of an atom.
  33. 58. a class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light.
  34. 59. any of the basic mechanical devices for applying a force
  35. 60. the resistance of any physical object to any change in its velocity.
  36. 62. state of equilibrium or equipoise
  37. 63. strength or energy exerted or brought to bear
  38. 64. to calculate the velocity of light.
  39. 66. a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place.
  40. 67. the process of either splitting an atom
  41. 70. time rate of doing work or delivering energy
  42. 71. a small localized object to which can be ascribed several physical or chemical properties, such as volume, density, or mass
  43. 74. a currently unrealized ability
  44. 77. the physical structure, shape and size of an organism
  45. 79. the chemical element of atomic number 35, a dark red fuming toxic liquid with a choking, irritating smell. It is a member of the halogen group and occurs chiefly as salts in seawater
  46. 82. the rate at which an object changes its position
  47. 84. the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position
  48. 85. a numerical measurement of how far apart objects or points are
  49. 87. rate at which velocity changes with time
  50. 88. an electromotive force or potential difference expressed in volts.
  51. 93. the capacity for doing work
  52. 94. material substance that constitutes the observable universe and, together with energy, forms the basis of all objective phenomena