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9:19 Why 10.4 here? Shouldn't it be just 10(dot) because the least SF is 2?
Significant figures are a crude version on uncertainties. When we have uncertainties we keep the same decimal place as the uncertainty.
My students are unable to watch this using the link at the top of their worksheet. It gives a "members only" message. Help?
Try this link ruclips.net/video/iHXNVw6nvZI/видео.html
Did you accidentally write the wrong number in 14:05? First you said that sin(20) is 0.3420 but then you said "round it off to 0.39"
I had problems reading my own writing. It is .3420 but my 4 looked like a 9, so I started saying and writing 9.
![Calculating uncertainties [IB Physics SL/HL]](/img/1.gif)
9:19 Why 10.4 here? Shouldn't it be just 10(dot) because the least SF is 2?
Significant figures are a crude version on uncertainties. When we have uncertainties we keep the same decimal place as the uncertainty.
My students are unable to watch this using the link at the top of their worksheet. It gives a "members only" message. Help?
Try this link ruclips.net/video/iHXNVw6nvZI/видео.html
Did you accidentally write the wrong number in 14:05? First you said that sin(20) is 0.3420 but then you said "round it off to 0.39"
I had problems reading my own writing. It is .3420 but my 4 looked like a 9, so I started saying and writing 9.