#$&*
phy 201
Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Question Form_labelMessages **
Rubber bands
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I do understand the setup of the experiment but I don't understand how to set up the graph I hate to criticize and I can't believe Im saying this but can you improve some clarity maybe its just me but on most of these things I keep getting lost in the words and the situation
Make a table of the force exerted by each of the first four rubber bands vs. the length of the rubber band. You do not need to do this with all six, but you should retain the last two rubber bands and your data for those two, in case you have need of them in later experiments.
Rubber band calibrations
Make a force vs. length table for each of these four bands. The length will go in the first column, the force in the second. Your graph will be of the type shown below, but you probably won't have quite as many data points; your forces will also differ from the forces indicated by this graph.
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Im asking about a problem involving the rubber band calibrations
@&
I don't mind your suggestion in the least, and feel free to continue to make suggestions. For reasons I explain here, I'm not going to change the instructions for this particular experiment. But I'm going to attempt to clarify the situation for you.
One of the goals of this course is for students to learn to read and interpret the language of the course. The reason for this is that it takes precisely worded phrases to define anything, and everything we do here needs to be clearly and unambiguously defined. Sometimes the words require pictures to help clarify meanings, and sometimes I'm tempted to use more pictures, but pictures by themselves can be ambiguous, and if there are too many pictures students will frequently ignore the words and misinterpret the pictures.
The words are all well defined and students do not typically have trouble interpreting them. I'm not inclined to change instructions that appear to work, not because I don't like to change things but because it's risky to change what appears to work.
However no one approach will work for everyone, which is why I welcome questions.
In any case, if you don't know the meanings of the terms, then interpretation can be impossible. In this case the appropriate recourse is to define what it is you don't know and ask, as you are doing here, in which case I'm always happy to clarify.
Presumably you have suspended dominoes from the chain of rubber bands and paper clips, and measured the endpoints of each rubber band. From this data you can determine the length of each rubber band for each number of dominoes.
From the presumed mass of a domino you can determine its weight, and therefore the weight suspended from the chain, for each number of dominoes. Every rubber band supports this weight, so every rubber band has a tension force equal to this weight.
For each rubber band, then, you have about five lengths and five forces.
A table of y vs.x has x, presumed to be the independent variable, in the first column, and the dependent variable y in the second.
A graph of y vs. x has the dependent variable y on the vertical, and the independent variable x on the horizontal axis.
This defines the meaning of 'vs.' in the context of both a table and a graph.
You're asked to make a table and a graph of force vs. length, for each of the first four rubber bands.
If this doesn't clarify the situation, tell me what you think might be meant by the instructions and this explanation and I'll be glad to clarify further.
*@
#$&*
phy 201
Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Question Form_labelMessages **
Rubber bands
** **
** **
I do understand the setup of the experiment but I don't understand how to set up the graph I hate to criticize and I can't believe Im saying this but can you improve some clarity maybe its just me but on most of these things I keep getting lost in the words and the situation
Make a table of the force exerted by each of the first four rubber bands vs. the length of the rubber band. You do not need to do this with all six, but you should retain the last two rubber bands and your data for those two, in case you have need of them in later experiments.
Rubber band calibrations
Make a force vs. length table for each of these four bands. The length will go in the first column, the force in the second. Your graph will be of the type shown below, but you probably won't have quite as many data points; your forces will also differ from the forces indicated by this graph.
** **
Im asking about a problem involving the rubber band calibrations
@&
I don't mind your suggestion in the least, and feel free to continue to make suggestions. For reasons I explain here, I'm not going to change the instructions for this particular experiment. But I'm going to attempt to clarify the situation for you.
One of the goals of this course is for students to learn to read and interpret the language of the course. The reason for this is that it takes precisely worded phrases to define anything, and everything we do here needs to be clearly and unambiguously defined. Sometimes the words require pictures to help clarify meanings, and sometimes I'm tempted to use more pictures, but pictures by themselves can be ambiguous, and if there are too many pictures students will frequently ignore the words and misinterpret the pictures.
The words are all well defined and students do not typically have trouble interpreting them. I'm not inclined to change instructions that appear to work, not because I don't like to change things but because it's risky to change what appears to work.
However no one approach will work for everyone, which is why I welcome questions.
In any case, if you don't know the meanings of the terms, then interpretation can be impossible. In this case the appropriate recourse is to define what it is you don't know and ask, as you are doing here, in which case I'm always happy to clarify.
Presumably you have suspended dominoes from the chain of rubber bands and paper clips, and measured the endpoints of each rubber band. From this data you can determine the length of each rubber band for each number of dominoes.
From the presumed mass of a domino you can determine its weight, and therefore the weight suspended from the chain, for each number of dominoes. Every rubber band supports this weight, so every rubber band has a tension force equal to this weight.
For each rubber band, then, you have about five lengths and five forces.
A table of y vs.x has x, presumed to be the independent variable, in the first column, and the dependent variable y in the second.
A graph of y vs. x has the dependent variable y on the vertical, and the independent variable x on the horizontal axis.
This defines the meaning of 'vs.' in the context of both a table and a graph.
You're asked to make a table and a graph of force vs. length, for each of the first four rubber bands.
If this doesn't clarify the situation, tell me what you think might be meant by the instructions and this explanation and I'll be glad to clarify further.
*@