Extra Info Flashcards
What is a Random Error
An error that is caused by measurements of a quantity being either above or below the quantity being measured. *experimenter’s inability to take the same measurement in exactly the same way to get exact the same number.
( the effects of random errors can be reduced by taking the average of many observations)
What is systematic error?
An error that produces a constant bias in measurement.
Systematic error is eliminated or minimised through calibration of apparatus and careful design of procedure.
- Systematic errors are reproducible inaccuracies that are consistently in the same direction.
Sources of systematic error
Typical causes of systematic error include observational error, imperfect instrument calibration, and environmental interference
Sources of random error
limitations of instruments, environmental factors, and slight variations in procedure.
What is human error?
Human error is due to carelessness or to the limitations of human ability.
- occurs when data is recorded or written down incorrectly.
- limitations of human accuracy
