Units and Measurements – Significant Figures, Errors in Measurement

Grade 11 Physics — Units and Measurements – Significant Figures, Errors in Measurement: 25 practice questions with instant scoring and explanations.

1. Significant figures in 0.0045:
2. Significant figures in 25.30 cm:
3. Absolute error:
4. Result of 5.0 × 2.5:
5. Relative error defined as:
6. 45.6 g + 4.3 g:
7. Sig figs in 6.02 × 10^23:
8. Random errors:
9. Systematic errors due to:
10. Sig figs in 3.20 × 10^-4:
11. Percentage error:
12. Multiplying/dividing:
13. Sig figs in 50 (not counted):
14. Precision refers to:
15. Accuracy refers to:
16. Least count of ruler:
17. 12.5 cm + 8.25 cm:
18. Sig figs in 0.0050 L:
19. Mean absolute error:
20. Sig figs in 100.0:
21. Parallax error:
22. 0.00304 km sig figs:
23. Rounding 8.765 to 3 sig figs:
24. Scale uncertainty:
25. Cannot reduce by averaging: