Uncertainties
8
Uncertainties
-
Upload
chris-hamper -
Category
Documents
-
view
300 -
download
4
Transcript of Uncertainties
![Page 1: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/1.jpg)
Uncertainties
![Page 2: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/2.jpg)
Tables old method
• (max – min)/2• 1 sf
![Page 3: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/3.jpg)
New method 1
• Standard deviation• 2 sf
![Page 4: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/4.jpg)
New method 2
• (max – min)/N• 2 sf
![Page 5: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/5.jpg)
Old method
• g = 9 ± 3 m s¯²
![Page 6: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/6.jpg)
New method 1
• g = 9.4 ± 1.5 ms¯²
![Page 7: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/7.jpg)
New method 2
• g = 9.4 ± 0.3 ms¯²
![Page 8: Uncertainties](https://reader035.fdocuments.us/reader035/viewer/2022081209/5584820cd8b42aa9028b49d8/html5/thumbnails/8.jpg)
Now also OK
• Propagation through calculation but no graph• Curves• Other• Tick lists are out• Don’t let uncertainties spoil a good practical