Difference between revisions of "Experimental Error"
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===About Experimental Errors=== | ===About Experimental Errors=== | ||
: '''Experimental errors''' lead to [[results]] that are not [[accurate]]. | : '''Experimental errors''' lead to [[results]] that are not [[accurate]]. | ||
| + | : The smaller the [[reading]] or [[measurement]] taken, the more important the '''error''' becomes. A [[measurement]] of 10 seconds with a 0.2 second '''error''' is less [[Accuracy|inaccurate]] than a 0.5 second [[measurement]] and a 0.2 second '''error'''. | ||
'''Experimental error''' may be: | '''Experimental error''' may be: | ||
*A [[Random Error]] when a [[Control Variable]] that has not be controlled properly. | *A [[Random Error]] when a [[Control Variable]] that has not be controlled properly. | ||
*A [[Human Error]] when a [[human]] does not [[reading|read]] a measuring instrument properly. | *A [[Human Error]] when a [[human]] does not [[reading|read]] a measuring instrument properly. | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | [[Experimental Error]] is mistakes in the [[results]] of an [[experiment]] that happen because of a problem with the [[method]] or the [[measure|measuring]] [[equipment]]. | ||
| + | |||
| + | ===About Experimental Errors=== | ||
| + | : '''Experimental errors''' lead to [[results]] that are not [[accurate]]. | ||
| + | : The smaller the [[reading]] or [[measurement]] taken, the more important the '''error''' becomes. A [[measurement]] of 10 seconds with a 0.2 second '''error''' is less [[Accuracy|inaccurate]] than a 0.5 second [[measurement]] and a 0.2 second '''error'''. | ||
| + | '''Experimental error''' may be: | ||
| + | *A [[Random Error]] when a [[Control Variable]] that has not be controlled properly. | ||
| + | *A [[Human Error]] when a [[human]] does not [[reading|read]] a measuring instrument properly. | ||
| + | *A [[Systematic Error]] when the [[results]] wrong by the same amount each time. | ||
| + | *A [[Zero Error]], a type of [[Systematic Error]], caused by a [[Measuring Instrument|measuring instrument]] not being [[calibrate]]d. | ||
| + | |||
| + | ===References=== | ||
| + | ====AQA==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Experimental error, page 119, GCSE Chemistry; Student Book, Collins, AQA ''] | ||
Latest revision as of 14:31, 15 November 2019
Contents
Key Stage 3
Meaning
Experimental Error is mistakes in the results of an experiment that happen because of a problem with the method or the measuring equipment.
About Experimental Errors
- Experimental errors lead to results that are not accurate.
- The smaller the reading or measurement taken, the more important the error becomes. A measurement of 10 seconds with a 0.2 second error is less inaccurate than a 0.5 second measurement and a 0.2 second error.
Experimental error may be:
- A Random Error when a Control Variable that has not be controlled properly.
- A Human Error when a human does not read a measuring instrument properly.
Key Stage 4
Meaning
Experimental Error is mistakes in the results of an experiment that happen because of a problem with the method or the measuring equipment.
About Experimental Errors
- Experimental errors lead to results that are not accurate.
- The smaller the reading or measurement taken, the more important the error becomes. A measurement of 10 seconds with a 0.2 second error is less inaccurate than a 0.5 second measurement and a 0.2 second error.
Experimental error may be:
- A Random Error when a Control Variable that has not be controlled properly.
- A Human Error when a human does not read a measuring instrument properly.
- A Systematic Error when the results wrong by the same amount each time.
- A Zero Error, a type of Systematic Error, caused by a measuring instrument not being calibrated.