Across
- 1. The unit of mass
- 3. Human reaction time is about _____ a second.
- 6. When making measurements, always record to the best precision the apparatus allows, e.g. __ for a ruler
- 7. Data is ________ if there is only a small amount of scatter of points about the best fit line.
- 8. Prefix meaning x10<sup>-6</sup>
- 9. Measurements should always be ________ and ________ to improve reliability.
- 10. When multiplying or dividing measurements the _________ uncertainties add.
- 15. kilometres should always be converted to...
- 18. Hours and minutes should always be converted to...
- 20. The number of significant figures in the number 0.02015s
- 21. Always use ________ form for calculations, including on your calculator
- 24. The number of cubic centimetre in a cubic metre equals one...
- 25. The number of decimal places in the number 1.23kg
- 27. Prefix meaning x10<sup>-2</sup>
- 28. When making measurements, always check the apparatus for a _____ error.
Down
- 2. Prefix meaning x10<sup>9</sup>
- 4. A result is ________ if the percentage difference between it and the true value is small.
- 5. A coin is measured with a ruler as 3.3cm. The absolute uncertainty is ± ______ mm.
- 6. Prefix meaning x10<sup>-3</sup>
- 7. You must be able to do this to equations on a-level physics
- 11. Measurements should always be ________ and ________ to improve reliability.
- 12. When adding or subtracting measurements the ________ uncertainties add.
- 13. Prefix meaning x10<sup>-9</sup>
- 14. The unit of current
- 16. A coin is measured with a ruler as 3.3cm. The percentage uncertainty is approximately ______ %.
- 17. The number of square millimetre in a square centimetre equals one...
- 19. The unit of charge
- 22. The unit of force
- 23. Tables always need column headings, with ______ in brackets.
- 26. Prefix meaning x10<sup>6</sup>