How Do You Calculate Uncertainty in Physics Measurements?

AI Thread Summary
To calculate uncertainty in physics measurements, it's essential to understand how to apply the appropriate formulas. For the position-time graph, the uncertainty in initial position (x = 0 cm) can often be taken as the uncertainty in the measurement tool. For delta x (∆x = 2.1 cm), the uncertainty can be calculated using the formula for the propagation of uncertainty, which involves the individual uncertainties of the values used. Average velocity uncertainty can be derived from the uncertainties in both position and time measurements, typically using the formula for average velocity uncertainty that incorporates these values. Additional resources or detailed examples can provide further clarity on these calculations.
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Can anyone help me how to find uncertainty in values? I did a lab on position-time graph. And I have to find uncertainty in soem of the values. My teacher showed me a shortcut on how to find uncertainty of average velocity. But I did not understand that?

I graphed a position-time graph by the motion of the puck. Then by the help of values i prepared a velocity-time graph. Now I have to find the uncertainty in
x original i.e. x = 0 cm ,

then in delta x i.e. ∆x = 2.1 cm (the values were x = 1.2 cm and 3.3 ± 0.1 cm),

in average velocity v = 16.2 cm/s (values of x were 0 cm and 3.3 cm and values of time were 0.0 ses and 0.2 sec.

Please atleast show me the formula on how to find it, i will figure out the answer afterwards. Or the answer would be extra bonus for me.

If more information needed, i would give out then.

Thankyou.
 
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