Across
- 3. rate of change of velocity
- 5. force per unit cross sectional area
- 8. rate of change of angular displacement
- 10. a quantity with magnitude and direction
- 12. transfer of energy without transfer of matter
- 13. minimum frequency required for emission
- 15. property of matter causing electrical interaction
- 18. number of oscillations per second
- 21. product of field strength and area
- 25. neutral particle in nucleus
- 26. addition of overlapping wave displacements
- 27. force per unit mass or charge
- 30. resultant force directed towards centre of circular motion
- 34. permanent deformation after stress removal
- 35. pulling force transmitted through a string or rope
- 40. a standard used to measure a physical quantity
- 41. capacity to do work
- 43. state where resultant force is zero
- 46. large amplitude oscillation at natural frequency
- 47. quantum of electromagnetic radiation
- 48. interaction that causes change in motion
- 49. ratio of potential difference to current
- 50. rate of change of distance
- 53. work done per unit charge
- 54. fractional change in length
- 56. maximum displacement from equilibrium
- 58. discrete packet of energy
- 61. number of nuclear decays per second
- 62. closeness of a measurement to the true value
- 63. reciprocal of resistance
- 64. ratio of stress to strain
- 65. energy supplied per unit charge
- 71. spreading of waves through gaps
- 72. energy due to position in a field
- 75. ability to return to original shape after deformation
- 76. rate of change of displacement
- 78. negatively charged particle outside nucleus
- 79. ratio of useful output to total input
- 81. position within a wave cycle
- 82. squeezing force acting to shorten an object
- 83. reduction of amplitude due to energy loss
- 84. energy required to separate nucleus into nucleons
- 85. superposition producing reinforcement and cancellation
Down
- 1. region where a force acts
- 2. change in direction at a boundary
- 4. curved path of an object under gravity
- 6. a quantity with magnitude only
- 7. attractive force between masses
- 9. distance between points in phase
- 11. time for activity or nuclei number to halve
- 14. repeated motion about equilibrium
- 16. power per unit area
- 17. state with zero velocity and zero resultant force
- 19. rate of flow of electric charge
- 20. energy transferred by a force through a distance
- 22. support force exerted by a surface
- 23. resistive force opposing motion
- 24. total path length travelled
- 28. production of emf by changing magnetic flux
- 29. charge stored per unit potential difference
- 31. force per unit area
- 32. atoms with same proton number but different nucleon number
- 33. duration of an event
- 36. measure of disorder in a system
- 37. proton or neutron in nucleus
- 38. time for one complete oscillation
- 39. resistance to change in motion
- 42. mass per unit volume
- 44. force per unit area from gas particle collisions
- 45. property describing resistance of a material
- 51. the degree of repeatability of measurements
- 52. a measurable property expressed with magnitude and unit
- 55. energy transferred due to temperature difference
- 57. the difference between measured value and true value
- 59. an estimate of the range within which the true value lies
- 60. product of mass and velocity
- 66. change in position in a stated direction
- 67. restriction of oscillations to one plane
- 68. spontaneous emission from unstable nucleus
- 69. gravitational force acting on a mass
- 70. change in direction due to speed change
- 73. measure of average kinetic energy of particles
- 74. positively charged particle in nucleus
- 77. change in momentum
- 80. measure of inertia of a body
- 81. rate of doing work