Well, that depends. Is that the time for 20 swings? Or 1? Are your trials all for the same length and mass? The best way to check is to do your calculations and calculate a % error.
Okay, so for the link to put our data and calculations in, it asks for Ft (tension) and I know Mr. Crane said that Fc should = tension, so if our Fc is .26, should Ft be .26 as well?
Also, for period (T), is it how many seconds it took for one rotation or is it the circumference of the circle?
Period is the the time for 1 complete of anything and is a measurement of time. Circumferences measures distance. Fc=Fg=Ft. So which one can be relied upon to a higher degree of certainty Fc or Fg. Whichever you think is a more reliable measure of the Ft is the one you should put.
Because Fg is more concrete, should we use Fg as an estimator of the accuracy of Fc? Also, are we answering the lab questions in the packet for Friday as well? Thanks
for the percent error, what value should be used for the theoretical and the actual? I used the mass of the stopper for the actual and mvsquared over r for the theoretical. Is that correct? Thanks
i have another question: if your percent error is <10%, do we have to write an explanation? and should the ac be the velocity of the trial you are using (sq) over the radius? thanks!
Is a range of 2.5 seconds precise or two large of a deviation between shortest and longest trials?
ReplyDeleteMax
Well, that depends. Is that the time for 20 swings? Or 1? Are your trials all for the same length and mass? The best way to check is to do your calculations and calculate a % error.
ReplyDeleteOkay, so for the link to put our data and calculations in, it asks for Ft (tension) and I know Mr. Crane said that Fc should = tension, so if our Fc is .26, should Ft be .26 as well?
ReplyDeleteAlso, for period (T), is it how many seconds it took for one rotation or is it the circumference of the circle?
Thanks!
Period is the the time for 1 complete of anything and is a measurement of time.
ReplyDeleteCircumferences measures distance.
Fc=Fg=Ft. So which one can be relied upon to a higher degree of certainty Fc or Fg. Whichever you think is a more reliable measure of the Ft is the one you should put.
okay that makes sense, thanks Mr. Crane!
DeleteBecause Fg is more concrete, should we use Fg as an estimator of the accuracy of Fc? Also, are we answering the lab questions in the packet for Friday as well? Thanks
ReplyDeleteso we use the circumference for the velocity, and the time for a single rotation?
ReplyDeletewhat does a (centripetal) stand for on the website?
ReplyDeletefor the percent error, what value should be used for the theoretical and the actual?
ReplyDeleteI used the mass of the stopper for the actual and mvsquared over r for the theoretical. Is that correct?
Thanks
experimental is your Fc which is m(v)sq/r and Fg is theoretical which is the weight of the washers.
ReplyDeletei have another question: if your percent error is <10%, do we have to write an explanation? and should the ac be the velocity of the trial you are using (sq) over the radius? thanks!
ReplyDeletewhen you ask for "a (centripetal)", do you want an acceleration?
ReplyDeleteisn't it just m(v)squared over the radius equals ma(centripetal) equals Fc. and use the Fc of the best trial?
Deleteso the Fc of your best trial is a (centripetal)
DeleteIf he is askin for acceleration take out mass
ReplyDeletethen just (v)squared over radius equals a?
ReplyDelete