4. 15 pts] Identify whether the following sources of error are random or systema

Question

4. 15 pts] Identify whether the following sources of error are random or systematic Explain your answer (a) A small earthquake occurs while you are measuring the mass of an object spectroscopy measurement. The dark signal is not subtracted from the measurement. be miscalibrated circuit in the voltmeter causes individual voltage readings to jump to zero before (b) The sample chamber of a spectrometer is left ajar during an absorption (C) A plastic graduated cylinder is warped in an oven, causing the volume gradients to (d) While measuring the average voltage of an electrical signal, an intermittent short- (e) An old bable results in a fluctuating current powering a laser whose intensity is returning to an accurate value. being measured

Explanation / Answer

Random errors can be reduced by averaging over a large number of observations. Can be evaluated through statistical analysis

Systematic errors are often due to a problem which persists throughout the entire experiment.like the cloth tape measure that you use to measure the length of an object had been stretched out from years of use.

so random error

a c and e

systematic error

b and d

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