Error Analysis

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Across
  1. 2. You should read a scale with your ... eye perpendicular to it.
  2. 4. A scale might be incorrectly ... during manufacture, causing a systematic error.
  3. 5. The difference between the measured value and the true or accepted value.
  4. 7. The type of screw used to fix a zero error on an ammeter.
  5. 10. Recording and analysing measurements for quality. (2 words)
  6. 11. The digital ... calliper in Figure 9 measures wire diameter.
  7. 12. A tool used to identify errors; systematic errors can shift the intercept.
  8. 17. Random errors tend to ... above and below the true value.
  9. 20. ... reading limitations are a major source of random errors.
  10. 23. The y-... on a graph (the 'c' value) can reveal a zero error.
  11. 26. A ruler or analogue voltmeter has this type of scale.
  12. 27. The best way to handle random errors is to take several readings and ... them.
  13. 28. Uncontrollable effects of the ... can cause random errors.
  14. 29. Data that can have any value over a range, like diameter or mass.
  15. 31. The ... law experiment in Figure 6 showed a systematic error.
  16. 32. Describes the range of values or the uncertainty of a measurement.
  17. 34. A way to manage reaction time errors by recording an event for later analysis.
  18. 39. This error occurs when an instrument is not set to zero before use.
  19. 40. The inevitable 'wandering' in all continuous measurements.
  20. 41. The correct angle to view a scale to avoid parallax error.
  21. 43. A 'best ...' is a value closest to the true value, often found by averaging.
  22. 45. The lines on an instrument, like a ruler or thermometer.
  23. 47. An instrument used as an example for both calibration errors and continuous data.
  24. 48. The (0,0) point on a graph.
  25. 49. For a printed scale, the uncertainty is a ...-scale division.
Down
  1. 1. Type of error seen in Figure 4, where eight thermometers show different readings in the same water.
  2. 3. The 'normal' distribution that random errors are said to follow.
  3. 6. Type of data that is numeric or countable, like the number of wires.
  4. 8. An electronic ... can be used to minimise reaction time errors.
  5. 9. An environmental factor that can cause a metal rule to expand.
  6. 13. Errors that fluctuate above and below the true value.
  7. 14. An instrument that can run slow due to a fault, causing a systematic error.
  8. 15. Type of data that describes 'types', like 'red/green/blue'.
  9. 16. This type of error is caused by viewing a scale at an angle.
  10. 18. Errors, like blunders, that are not considered true experimental errors.
  11. 19. Errors that deviate readings by a consistent amount each time.
  12. 21. A ... counter is used to measure 'counts', but can be affected by background radiation.
  13. 22. The ... being used is the cause of systematic errors.
  14. 24. Dirt or ... on a wire can cause a systematic error.
  15. 25. On a graph, random errors cause data points to be ... on both sides of the trend line.
  16. 30. Instrument that might show a 0.05 A reading when no current flows.
  17. 33. Reliable data is consistent and ....
  18. 35. The Latin origin of the word 'error'.
  19. 36. The time taken for a person to respond to an event. (2 words)
  20. 37. An electronic stopwatch or voltmeter is this type of scale.
  21. 38. Accuracy is the difference between the measured value and the ... value.
  22. 42. Type of radiation from the sun or bricks that is 'always there'.
  23. 44. For a digital scale, the uncertainty is equal to the smallest ....
  24. 46. The ability of data to be trusted as accurate or correct.