GREPhysics.NET
GR | # Login | Register
   
  GR0177 #15
Problem
GREPhysics.NET Official Solution    Alternate Solutions
This problem is still being typed.
Lab Methods}Precision


The most precise measurement might be the wrong value, as long as after meany measurements, each measurement is very close to the mean. Thus, the width of the height vs number of trials graph must be as thin as possible. The only choice that shows this characteristic is choice (A).

See below for user comments and alternate solutions! See below for user comments and alternate solutions!
Alternate Solutions
There are no Alternate Solutions for this problem. Be the first to post one!
Comments
s0crates
2008-10-20 15:55:29
If you need a little more explanation for this one, check out this wiki on it, it helped me out quite a bit:

http://en.wikipedia.org/wiki/Accuracy_and_precision
wallace
2014-10-22 08:04:14
So, it is a sort of verbal game!Just accuracy or precision matters.
NEC
theeldest
2006-12-01 16:35:49
There are two things to describe measurements. Accuracy and Precision. Accuracy is nearness to the actual answer, and Precision is closeness of measurements to eachother.NEC
tera
2006-09-13 11:48:22
Can someone explain a liitle more this one?
dirichlet
2006-11-14 12:23:07
I think there are two points, the hight of the curve drawn and the width of the same curve. Let us discuss two cases, if the hight of the curve varies along the vertical axis as it happens in the last four options , we can say that most of the students did not undergo many trials which violates the criteria of a good experiment.

On the contrary, if the width of the graph is small,i.e. if it is thin, it means most of them did the experiment properly and also their results do not vary abruptly.
NEC

Post A Comment!
You are replying to:
If you need a little more explanation for this one, check out this wiki on it, it helped me out quite a bit: http://en.wikipedia.org/wiki/Accuracy_and_precision

Username:
Password:
Click here to register.
This comment is best classified as a: (mouseover)
 
Mouseover the respective type above for an explanation of each type.

Bare Basic LaTeX Rosetta Stone

LaTeX syntax supported through dollar sign wrappers $, ex., $\alpha^2_0$ produces .
type this... to get...
$\int_0^\infty$
$\partial$
$\Rightarrow$
$\ddot{x},\dot{x}$
$\sqrt{z}$
$\langle my \rangle$
$\left( abacadabra \right)_{me}$
$\vec{E}$
$\frac{a}{b}$
 
The Sidebar Chatbox...
Scroll to see it, or resize your browser to ignore it...