Physics Terms -1

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Across
  1. 3. A device used to measure the potential difference , connected in parallel.
  2. 4. The energy transferred when an object is moved through a distance by a force.
  3. 11. A scalar quantity, speed = distance / time
  4. 12. A quantity with magnitude and direction.
  5. 16. The work done in moving a unit positive charge from one point to the other.
  6. 17. Series of vibrations that transfer energy from one place to another.
  7. 18. A physical quantity, measured in cubic metres(m3)
  8. 19. The rate of change of displacement with respect to time
  9. 21. More than one forces that if unbalanced will cause a rotation.
  10. 22. A SI quantity, measured in kelvin (K).
  11. 25. acceleration
  12. 26. Zero on the thermodynamic temperature scale, equal to -273.15 degrees Celsius
  13. 28. The change in length of an object when a force is applied to it
  14. 29. = force x perpendicular distance from the pivot to the line of action of the force
  15. 34. A device used to measure the electric current in a circuit, connected in series.
  16. 35. The maximum displacement of a wave from its rest/mean position
  17. 37. A quantity with magnitude but no direction.
  18. 38. A type of force due to an engine (usually forward force).
  19. 39. is a form of energy transfer, also known as 'Thermal Energy'.
  20. 40. The unit of potential difference (p.d.) or electromotive force (e.m.f.)
  21. 41. The unit of power , = energy / time
Down
  1. 1. The SI unit of work done, or energy, when a force of one newton moves an object one metre.
  2. 2. A form of electromagnetic wave . It may cause sun tanning.
  3. 5. A vector quantity, the distance of an object from its initial position in a direction
  4. 6. The rate at which work is done.
  5. 7. The gravitational force acting on a body, measured in newtons (N).
  6. 8. A force causes a mass to change motion
  7. 9. The energy an object possesses due to its motion, given by KE = 0.5 x m x v²
  8. 10. The time taken for one complete oscillation. Denoted by 'T'. T=1/f
  9. 13. The stored ability to do work
  10. 14. Two equal, opposite and parallel forces which create rotational force.
  11. 15. When resistive forces = driving force, acc = 0, so it cannot travel any faster.
  12. 20. Unit in which force is measured. Symbol "N".
  13. 21. An electrical component that changes its resistance depending on its temperature.
  14. 23. The property of a material that measures it resistance to electric current.
  15. 24. The number of waves that pass a fixed point in a unit of time
  16. 26. The (instantaneous) rate of change of velocity in respects to time
  17. 27. The acceleration of a body falling under gravity (9.81ms-2 on earth)
  18. 30. A form of electromagnetic wave , used in X-ray photography.
  19. 31. The SI unit for electric current.
  20. 32. The load applied to an object per unit surface area.
  21. 33. Density is the mass of a body per unit volume
  22. 36. A force experienced due to the pressure difference of the fluid at the top and bottom.