Non Human Sources Of Error
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Sources Of Error In A Chemistry Lab
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Sources Of Error In Physics
Travel Yahoo Products International Argentina Australia Brazil Canada France Germany India Indonesia Italy Malaysia Mexico New Zealand Philippines Quebec Singapore Taiwan Hong Kong Spain Thailand UK & Ireland non human sources of error in a chemistry lab Vietnam Espanol About About Answers Community Guidelines Leaderboard Knowledge Partners Points & Levels Blog Safety Tips Education & Reference Homework Help Next What are possible sources of error in an experiment? My experiment is on testing nutrients in solutions, using test tubes and hot water baths, i need two sources of error, thanks:) 3 following types of sources of error 5 answers 5 Report Abuse Are you sure you want to delete this answer? Yes No Sorry, something has gone wrong. Trending Now Chris Cuomo Angelina Jolie Typhoon Haima Luke Bryan Derrick Rose Online MBA Kim Zolciak Credit Cards Jimmy Fallon Cable TV Answers Relevance Rating Newest Oldest Best Answer: Incomplete definition (may be systematic or random) - One reason that it is impossible to make exact measurements is that the measurement is not always clearly defined. For example, if two different people measure the length of the same rope, they would probably get different results because each person may stretch the rope with a different tension. The best way to minimize definition errors is to carefully consider and specify the conditions that could affect the measurement. Failure to account for a factor (usually systematic) - The most challenging part of designing an experiment is trying to control or account for all possible factors except the one independent variable that is being analy
some component of the procedure that requires estimation, approximation, interpretation or the use of inaccurate tools? If so, this is a good place to start. When making a calculation you should look at the
Source Of Error Definition
values that went into the final result and analyze where they came from. For example, sources of error in a biology lab in the equation: distance = (baseline/2*pi)*(360/theta), there are only two variables that could contribute to error in the final result. The next step
Sources Of Error In Measurement
is to determine why? How were the values used found? There may be inaccuracies in your measurement tool or method, inconsistencies in your method from one trial to the next, approximations made, etc. Remember, simply saying "there https://answers.yahoo.com/question/index?qid=20090707145338AAaUiOa was error in my angular shift measurement" will not get the full credit. You must identify what aspect of that measurement generated the error. In this case a better example would be "there was error in my angular shift measurement due inconsistency in my placement of the string." Types of Error Random Error: Due to precision limitations in the measuring device and can cause your data to deviate in either direction. Systematic Error: Due to inaccuracies/approximations http://user.physics.unc.edu/~nrfrank/error.html in the experimental method that will cause data to deviate in one direction (i.e. may result in over/under-estimation of a value regardless of the number of times you measure it). Common A101 Lab Examples Atmospheric Blurring: This will often (BUT NOT ALWAYS) crop up when trying to make measurements from one of your images. The atmosphere blurs all incoming light on a fixed scale and measurements made at/near this scale will be dominated by blurring. This is not always relevant though. In some measurements the blurring does not affect the accuracy of the measurement because you are not measuring between areas affected by the blurring. Approximation: There are many cases in which we are asked to make an approximation, be it in locating a measurement start/stop point (for various reasons), using an equation/value or piece of apparatus, or discerning information from a graph. If you are asked to make an approximation this is a source of error since this will vary from person to person. Note: this is not "human error," because it is not an error of yours but an error in the experimental method. Inconsistencies: Often, whether due to a lack of definition or available apparatus, it is necessary to perform an experiment in a non-standardized way. This can lead to fundamental inconsistencies in the experiment that will contribute error. These often
Upon a Lifetime → School & Study Javascript Disabled Detected You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality. Chemistry Lab Reports Started by hyori , Jan https://afspot.net/forum/topic/493804-chemistry-lab-reports/ 18 2008 03:18 AM This topic has been archived. This means that you cannot reply to this topic. 6 replies to this topic #1 hyori hyori faq.asianfanatics.net Members+ 718 posts Posted 18 January 2008 - 03:18 AM This problem has only arisen this past school year because when I took this same Chem course in University last year, we wern't required to write out discussions. Ok, so... this year we have had to of error do discussions, as hinted at the end of the last sentence, and we're required to talk about the 'sources of error' but not 'human sources of error'. I thought all main sources of error was done by humans... can someone list some potential sources of error that are NOT done by humans? Back to top #2 mv_288 mv_288 Super Poster Forum Masters 14682 posts Posted 18 January 2008 - 03:50 AM it really sources of error depends. it could be the accuracy of the balances. like some measure to 1 decimal place, other round up to 3, etc. accuracy of the instruments you use for measuring. it's usually pretty hard to find error tho. Back to top #3 aznsnipa aznsnipa faq.asianfanatics.net Members+ 175 posts Posted 18 January 2008 - 05:25 AM yeah, i would say something like a measuring instrument too. For example, if u use a string to measure how long something is, most-likely it will be inaccurate becuz the string might not be stretched out enough. So, to improve this measuring process u would go use a normal ruler lol. Sry im 2 lazy to make a better example lol Back to top #4 mommo mommo faq.asianfanatics.net AF-newbie 12 posts Posted 18 January 2008 - 06:26 AM All lab equipment, beakers, flasks, even graduated cylinders and balances all have a certain error to it, usually its written on it. For example chem equipment at my school have 100mL erlenmeyer flasks with a .8mL error so on the flask, its written as 100 +-.8mL. The reason for these errors is because they might have been made differently so there's little difference in its volume. Or because the temperature might be different in each room, the volume of the flask may expand or co