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P6

Errors

QuestionAnswer
Is the deviation of a measured valued from the expected or true value Error
Is a way of expressing this error Uncertainty
-Refers to the closeness of a measured value to the expected or true value of a physical quantity. -Closeness of a measured value to the expected or true value. Accuracy
-Represents how close or consistent the independent measurement of the same quantity are to one another. -How close or consistent the independent measurements of the same quantity are to one another. Precision
As the name suggest, result from the unpredictable or inevitable changes during data measurement. Random Errors
On the other hand, usually come from the measuring instrument or in the design of the experiment itself. Systematic Errors
Presence of an expected or true value of a quantity Percentage Error
Is a measure of how far apart the different measured values are from each other, and is therefore an indication of a precision. Percent Differenece
Accepted or standard value Expected/True Value
Limit in accuracy of one’s result. Systematic errors
Fault study in instrument reading Observational error
Temperature result, force, moisture, dirt, vibration, or electrostatic field Environmental error
Spring scale is limited only to 10 kilos An Inherent Limitation of Devices (Instrumental Error)
Spring is too stretched to be use Abuse of Apparatus (Instrumental Error)
Triple beam balance inaccurate measurement due to heaviness Effects of Loading (Instrumental Error)
Physical errors in analysis apparatus or calculating and recording measurements outcomes. Gross Error
Affects the precision of measurements and results from unpredictable and inevitable changes during data measurement. Random error
Higher accuracy Smaller percentage error = ?
Higher precision Smaller percent difference = ?
Indicates that the measured value is less than the true value. Negative Sign
How large an error is in relation to the true value (percent uncertainty) Relative Uncertainty
How large the error is (standard deviation) Absolute uncertainty
Measurements are identical Zero Variance = ?
Created by: ChimpmunK