Across
- 2. above this the light will totally internally reflect
- 3. the number of waves or vibrations per second
- 7. a voltage that is continuously changing in direction (and value)
- 8. mass per unit volume
- 14. the spectrum of radiation
- 16. A turning effect
- 17. the time taken to produce on wave or vibration
- 23. the change is speed and direction of a wave when it crosses the boundary bewtween two media
- 24. a property of motion. How easy or hard it is to stop something.
- 25. a push or pull
- 26. force per unit area
- 31. anthing that is measurable
- 33. the movement of energy through a fluid
- 34. a transformer used in small electronics connected to the mains
- 36. the effect that causes an apparent change in frequency and wavelength of a wave due to relative motion of source (or observer)
- 37. a very thin wire that glows when electricity flows
- 39. getting faster, increasing in velocity
- 41. his name is a unit that describes the kientic energy of particles
- 44. the energy store of an object at height
- 46. small particles that matter is made of
- 48. A ratio that shows the amount a substance
- 50. a sensor. Detects when its infrared ray is broken.
- 51. A long coil of wire. Forms the basic electromagnet
- 52. he came up with the laws of motion (and gravitation)
- 53. a type of relationship where one variable increases and the other decreases
- 54. the wire that provides a low resistance path to the ground - for safety
Down
- 1. the energy store that is equivalent to temperature. In other words the motion of particles
- 4. the unit of charge
- 5. he came up with a rule to predict the motion of a motor
- 6. A device used to analyse waves and vibrations
- 9. is equal to energy transferred
- 10. the release (typically of energy) from an system
- 11. The top speed / velocity
- 12. something that is constant, unchanging. Obvious examples in motion and fields.
- 13. everything is balanced
- 15. the movement of energy through solid
- 18. a change of state from liquid to gas
- 19. when something is created, caused, produced
- 20. a force produced due to an object being submerged in a liquid
- 21. a force that opposes motion
- 22. the distance from one point on a wave to another identical point on the adjacent wave
- 27. the ratio of useful energy or power, to total energy or power
- 28. energy is stored due to an object position, state or shape.
- 29. avoid by looking at eye level
- 30. the charge on an electron
- 32. a special resistor where the resistance drops with increasing temeprature
- 35. Gamma rays can do this to medical equipment
- 38. the maximum displacement moved by a vibrating object from its rest position
- 39. equipment used in investigations and experiments
- 40. a sound device that uses the motor effect
- 42. a line at 90 degrees.
- 43. energy that is useless, often dissipated to the surroundinsg as heat
- 45. this requires both size and direction
- 47. the linear region of a force-extension graph.
- 49. the distance moved in a stright line from A to B