A Level Physics

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Across
  1. 1. Reduction of intensity of a beam due to absorption or scattering
  2. 3. The energy supplied by a source per unit charge passing through the source, measured in volts.
  3. 7. Force times distance moved in the direction of the force.
  4. 8. The product of a force and the perpendicular distance from the line of action to the pivot about which the force is acting.
  5. 10. The minimum frequency of light needed to cause electrons to be emitted in the photoelectric effect regardless of the intensity.
  6. 14. A force acting perpendicular to the flow of air or liquid around an object, typically upwards and against the force of gravity.
  7. 16. State of an object when at rest or uniform motion
  8. 17. The point on a stationary wave where the incoming and reflected waves are in phase forming a maximum point.
  9. 18. A resistor which is designed to have a resistance that changes with temperature
  10. 20. The range of values that could reasonably contain the true value of a measurement, based on the confidence an experimenter has about their result.
  11. 21. A hypothetical gas that has molecules with no interactions and occupy negligible space so it obeys the ideal gas law.
  12. 24. The upward force on a body in a fluid due to the pressure in the fluid
  13. 25. The force that causes flavour change in quarks and leptons, it is responsible for beta decay.
  14. 26. Rate of energy transfer in a circuit. It can be calculated as the product of the current and the potential difference between two points.
  15. 28. The number of nuclei of the isotope that disintegrate per second.
  16. 29. The change of momentum of an object when a force acts on it. Equal to the area underneath a force-time graph.
  17. 31. The anti-matter counterpart of the electron.
  18. 32. This person’s law says that as volume decreases the pressure on a gas at a constant temperature increases
  19. 33. The maximum speed reached by an object when the drag force on it is equal and opposite to the force causing the motion of the object.(2 words)
  20. 37. This law says that the direction of an induced current is such that it opposes the current that created it.
  21. 38. When an electron is removed from an atom giving the atom a positive charge.
  22. 40. How close a set of repeated measurements are to one another but not the true Value
  23. 41. A physical quantity with magnitude only.
  24. 42. A material that can withstand large plastic deformation without breaking.
  25. 43. A force felt towards the centre of an object's orbit due to the centripetal acceleration.
  26. 46. The total power radiated by a light-emitting source.
  27. 47. Distance between two adjacent wave peaks.
  28. 48. A center-reading electrical meter used to detect and measure an electric current.
  29. 49. The amount of work done in moving a unit mass from an infinite distance to that point. (2 words)
Down
  1. 2. Describes the rate of charge or discharge of a capacitor (2 words)
  2. 4. A wave that transfers energy from one point to another.
  3. 5. A physical quantity with magnitude and direction.
  4. 6. Materials that change their resistance depending on external conditions.
  5. 9. A measure of how difficult it is for charge to travel through a material, depending on the material’s cross sectional area, length and resistance.
  6. 11. Force per unit area acting on a surface perpendicular to the surface.
  7. 12. When the energy in a SHM system is not kept as KE or PE and the total energy is no longer constant.
  8. 13. Change of velocity per unit time
  9. 15. A quantity measuring the internal friction of a fluid, it acts to reduce the flow of a fluid. It is temperature dependent.
  10. 19. The effect of two waves adding together when they meet.
  11. 22. Positive terminal of an electrical device
  12. 23. This person’s law says that the peak wavelength of emitted radiation is inversely proportional to the absolute temperature of the black body.
  13. 27. The force of gravity acting on an object.
  14. 28. Maximum displacement of a vibrating particle.
  15. 30. When the driving force is at the natural frequency of a system causing maximal energy transfer with the amplitude of oscillation at its maximum.
  16. 34. A particle consisting of one quark and one antiquark.
  17. 35. How close a measurement is to its true value, influenced by the systematic and random errors of that measurement.
  18. 36. Sound waves at frequencies above the range of the human ear.
  19. 39. An optical instrument used to measure the wavelengths of lines in a spectrum.
  20. 44. Distance in a given direction.
  21. 45. A particle consisting of three quarks,