A Level Physics

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Across
  1. 3. driving frequency matches with natural frequency
  2. 5. gravitational ________ is the work done per unit mass in bringing a mass from infinity to a point
  3. 6. value of gravitational potential energy at infinity
  4. 9. random motion of molecules due to collisions with surrounding molecules
  5. 10. substance that has no intermolecular force and only valid at low pressure and high temperature
  6. 11. resultant force is zero
  7. 13. GMm/r2
  8. 14. technique to determine the direction of magnetic force, current and magnetic field
Down
  1. 1. a motion where acceleration is proportional to displacement in the opposite direction
  2. 2. force proportional to product of charges and inversely proportional to square distance.
  3. 4. the magnetic flux density depends on the number of turns per unit length
  4. 7. force acting towards the centre of a circle
  5. 8. the value of electric field strength on the surface if a point charge
  6. 12. U = q+ w is the __________ of thermodynamic
  7. 15. decrease in amplitude of waves