lecture #10 | precision and accuracy ● physics 11 - ch 1 | Physics in pashto

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content in this video contains:
Precision and accuracy, full chapter in pashto, dimensions of physical quantities, applications of diemensional analysis, uncertainty, physics in pashto.
Precision refers to how consistent our results are, regardless of how close to the true value they are. Using our target example, if we hit this area of the target on every shot, then we are precise.
So, a quick review and comparison. Accuracy is measuring near the true value. While precision is getting consistent measurements or results.
Let’s use the target for some more examples.
This would be accurate and precise. All the points are close together and average around the tru value.
This would be accurate but not precise, the results are around the true value but not too consistent with each other.
This would be precise but not accurate. All results are close together but not consistent with the true value. And finally, this is neither precise nor accurate, this is pretty much how it looks when I’m shooting, no consistency, not equidistant from the center, just random.
It’s important that measuring devices are both accurate and precise, whether it be in research, construction, engineering, or even in your home. If they are not, then results from measurements will be misleading leading at best and fatal at worst.
I hope you understand accuracy and precision a little better in pashto language. Comment below if you have any questions. And subscribe for more educational content.

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