Across
- 3. state in which resultant force equals zero (11)
- 5. energy cannot be created or destroyed only transferred or transformed (12,2,6)
- 6. rate of flow of electric charge (7)
- 10. single force equivalent to all forces acting together (9,5)
- 12. quantity with magnitude but no direction (6)
- 14. voltage directly proportional to current at constant temperature (5,3)
- 15. gravitational force acting on an object (6)
- 18. measure of the amount of matter in an object (4)
- 21. useful energy output divided by total energy input (10)
- 22. energy transferred per unit charge (7)
- 24. the rate of change of velocity with time (12)
- 27. collision in which kinetic energy is not conserved (9,9)
- 28. force multiplied by displacement in direction of force (8,4)
- 30. motion caused only by the force of gravity (8)
- 31. energy stored due to position in a gravitational field (13,9,6)
- 34. distance travelled divided by time taken (5)
- 37. the rate of change of displacement with time (8)
- 40. pulling force transmitted through a rope or string (7)
- 41. equation pressure multiplied by volume equals moles multiplied by gas constant and temperature (5,3,8)
- 42. energy possessed by an object due to motion (7,6)
- 43. transfer of thermal energy through particle collisions (10)
- 44. lowest possible temperature where particle motion is minimal (8,4)
- 45. energy required to raise temperature of one kilogram by one kelvin (8,4,8)
- 46. force that opposes relative motion between surfaces (8)
- 47. volume directly proportional to absolute temperature at constant pressure (8,3)
Down
- 1. warming caused by absorption of infrared radiation by gases in the atmosphere (11,6)
- 2. transfer of thermal energy by electromagnetic waves (9)
- 4. pressure inversely proportional to volume at constant temperature (7,3)
- 7. opposition to flow of electric current (10)
- 8. electromagnetic radiation emitted by an ideal absorber (10,9)
- 9. diagram showing all forces acting on an object (9,7)
- 11. object remains at rest or constant velocity unless acted on by resultant force (8,5,3)
- 13. energy stored when an object is stretched or compressed (7,9,6)
- 16. components connected on separate branches (8,7)
- 17. rate of energy transfer or work done per second (5)
- 19. object moving under gravity after launch (10)
- 20. forces occur in equal and opposite pairs (8,5,3)
- 23. force acting per unit area (8)
- 25. total momentum remains constant in an isolated system (12,2,8)
- 26. total random kinetic and potential energy of particles (8,6)
- 27. force multiplied by time for which it acts (7)
- 29. collision in which kinetic energy is conserved (7,9)
- 32. quantity with both magnitude and direction (6)
- 33. transfer of thermal energy by movement of fluids (10)
- 35. product of mass and velocity (8)
- 36. components connected in a single loop (6,7)
- 38. the change in position of an object in a particular direction (12)
- 39. resultant force equals mass multiplied by acceleration (8,6,3)
- 41. tendency of an object to resist changes in motion (7)