AS Physics Revision

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Across
  1. 5. The restriction of a transverse wave's oscillations to a single plane.
  2. 8. The law stating that extension is directly proportional to the force applied, up to the limit of proportionality.
  3. 9. An error that causes all readings to differ from the true value by a consistent amount each time (e.g., a zero error).
  4. 11. A fundamental property of a material measuring how strongly it opposes the flow of electric current.
  5. 12. Waves or sources that have a constant phase difference and the same frequency.
  6. 13. A wave where the oscillations are parallel to the direction of energy transfer.
  7. 15. A type of hadron made up of three quarks (e.g., a proton).
  8. 16. A measure of how close a reading or measurement is to the true value.
  9. 20. The rate of change of displacement.
  10. 21. The physicist who hypothesized that all moving matter has a wave nature.
  11. 24. The product of an object's mass and its velocity.
  12. 26. A semiconductor component whose resistance decreases as light intensity increases.
  13. 28. The minimum frequency of light required to release an electron from a metal surface.
  14. 29. A quantity that has both magnitude and direction.
  15. 30. The SI unit of pressure and stress, equivalent to one newton per square metre.
  16. 31. The rate of flow of electric charge.
  17. 33. The SI unit of electric current, equivalent to one coulomb per second.
  18. 35. The SI unit of power, equivalent to one joule per second.
  19. 36. The extension per unit length of a material due to an applied stress.
  20. 38. Fundamental particles that do not experience the strong nuclear force (e.g., electrons and neutrinos).
  21. 39. The ratio of tensile stress to tensile strain, measuring a material's stiffness.
  22. 42. The spreading out of a wave as it passes through a gap or around an obstacle.
  23. 43. The SI unit of energy or work done.
  24. 47. A wave that transfers energy from one point to another without transferring matter.
  25. 53. A component that allows current to flow in only one forward direction, requiring a specific threshold voltage.
  26. 55. A point along a stationary wave where the amplitude of oscillation is zero.
  27. 56. Testing and adjusting a scale on a measuring instrument to ensure its accuracy against a known standard.
  28. 59. The constant maximum velocity reached by a falling object when drag equals weight.
  29. 60. The process that occurs when a particle and its antiparticle meet, converting their mass entirely into photon energy.
  30. 61. The resistance inherent within a power supply itself, causing "lost volts" (_______ resistance).
  31. 62. A type of deformation where the material is permanently stretched and does not return to its original shape.
  32. 63. Particles made of quarks that experience the strong nuclear force (e.g., protons and neutrons).
  33. 66. The product of the force and the distance moved in the direction of the force.
  34. 67. A point along a stationary wave where the amplitude of oscillation is at its maximum.
  35. 71. A wave where the oscillations are perpendicular to the direction of energy transfer.
  36. 72. An error that causes readings to spread about the true value due to unpredictable variations; reduced by repeating and averaging.
  37. 73. A material with zero electrical resistance when cooled below a critical temperature.
  38. 75. The SI unit of force.
  39. 76. A circuit loop consisting of resistors in series used to split voltage and provide a specific output.
  40. 77. A collision where kinetic energy is not conserved, though momentum is.
  41. 78. The product of a force and the perpendicular distance from the pivot to the line of action of the force.
Down
  1. 1. A material that can be drawn into wires or easily deformed plastically without breaking (e.g., copper).
  2. 2. The work done per unit charge moving between two points.
  3. 3. A material with zero electrical resistance when cooled below its critical temperature.
  4. 4. A pair of equal and opposite forces acting parallel to each other but not along the same line.
  5. 6. The SI unit of electrical resistance.
  6. 7. The ratio of the speed of light in a vacuum to the speed of light in a material.
  7. 10. The type of reflection that occurs when light travels from a more dense to a less dense medium at an angle greater than the critical angle.
  8. 14. A semiconductor component whose resistance decreases as its temperature increases.
  9. 17. The total energy supplied by a source per unit charge moving through the whole circuit
  10. 18. The force per unit cross-sectional area applied to a material.
  11. 19. The emission of visible light by a substance that has absorbed shorter-wavelength radiation (like UV).
  12. 22. An estimate attached to a measurement which characterises the range of values within which the true value is asserted to lie.
  13. 23. A measure of how close a series of measurements are to one another.
  14. 25. The minimum energy required to liberate an electron from the surface of a metal.
  15. 27. The ratio of potential difference across a component to the current flowing through it.
  16. 32. A quantum (or packet) of electromagnetic radiation.
  17. 34. When two waves meet, the total displacement is the vector sum of their individual displacements.
  18. 37. The spacing or distance between adjacent bright or dark bands in an interference pattern.
  19. 40. A state where the net force and the net moment acting on an object are both zero.
  20. 41. The rate of change of velocity.
  21. 44. The movement of an electron to a higher energy level within an atom after absorbing energy.
  22. 45. The distance an object has moved in a specific direction from its starting point.
  23. 46. A conductor that obeys Ohm's law, where current is directly proportional to potential difference (at constant temperature).
  24. 48. The ratio of useful energy output to total energy input.
  25. 49. A collision or deformation where kinetic energy is conserved.
  26. 50. The effect where electrons are emitted from a metal surface when light of a high enough frequency shines on it.
  27. 51. The process where an atom gains or loses an electron to become charged.
  28. 52. A particle with the same mass and rest energy as its corresponding matter particle, but opposite charge.
  29. 54. A type of hadron made up of one quark and one antiquark (e.g., a pion).
  30. 57. A quantity that has magnitude but no direction.
  31. 58. The SI unit of potential difference, equivalent to one joule per coulomb.
  32. 64. The smallest change in the quantity being measured that gives a perceptible change in the reading of the measuring instrument.
  33. 65. The product of a force and the time for which it acts, equal to the change in momentum.
  34. 68. Atoms with the same number of protons but a different number of neutrons.
  35. 69. The outer protective layer of an optical fibre that has a lower refractive index to ensure total internal reflection.
  36. 70. A material that breaks with little to no plastic deformation when subjected to stress (e.g., glass).
  37. 74. The mass per unit volume of a substance.