Difference between revisions of "Human Error"
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===About Human Error=== | ===About Human Error=== | ||
: '''Human error''' can be caused by [[reading]] an [[Scientific Instrument|instrument]] incorrectly or by an [[Scientific Instrument|instrument]] that relies on a [[human]] to operate it. | : '''Human error''' can be caused by [[reading]] an [[Scientific Instrument|instrument]] incorrectly or by an [[Scientific Instrument|instrument]] that relies on a [[human]] to operate it. | ||
| − | : Every time a [[stopwatch]] is used there is a '''human error''' because [[human]]s take time to react to events. The '''human error''' in starting a [[stopwatch]] and stopping a [[stopwatch]] is around 0.2 seconds but can vary from person to person. | + | : Every time a [[stopwatch]] is used there is a '''human error''' because [[human]]s take time to react to events. The '''human error''' in starting a [[stopwatch]] and stopping a [[stopwatch]] is around 0.2 seconds but can vary from person to person. 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'''. |
| − | 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'''. | ||
: [[Reading]] the value on a [[Measuring Cylinder]] can be [[Accuracy|inaccurate]] due to the [[meniscus]] or if it is not [[reading|read]] at [[Eye Level|eye level]]. | : [[Reading]] the value on a [[Measuring Cylinder]] can be [[Accuracy|inaccurate]] due to the [[meniscus]] or if it is not [[reading|read]] at [[Eye Level|eye level]]. | ||
Revision as of 11:48, 30 November 2018
Key Stage 3
Meaning
A Human Error is a mistake made by a human causes results to be inaccurate.
About Human Error
- Human error can be caused by reading an instrument incorrectly or by an instrument that relies on a human to operate it.
- Every time a stopwatch is used there is a human error because humans take time to react to events. The human error in starting a stopwatch and stopping a stopwatch is around 0.2 seconds but can vary from person to person. 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.
- Reading the value on a Measuring Cylinder can be inaccurate due to the meniscus or if it is not read at eye level.