What are the common errors that may arise while measuring with a metric scale?
Answers
In order to make meaningful measurements in science we need standards of commonly measured quantities, such as those of mass, length and time. These standards are as follows:
1. The kilogram is the mass of a cylinder of platinum-iridium alloy kept at the International Bureau of Weights and Measures in Paris. By 2018, however, this standard may be defined in terms of fundamental constants. For further information read:
The errors in measurement system can be defined as the difference between the actual value and the measured value.
There are types of errors which may arise while using metric scale-
Gross errors- This occurs due to the mistake while using instruments or meters ,calculating measurement and recording date, results.
Measurement errors- It can be obtained due to the variation of a measurement of the true value. Measurement error consists of a random error and systematic error.
Systematic errors arise due to the fault in measuring device. Systematic errors can be divided into-
a) Instrumental errors can be obtained due to wrong constructions of measuring instrument.
b) Environmental errors occurs due to some external conditions of the instrument
c) Observational errors occurs due to the wrong observations or reading in the instruments.
d) Theoretical errors arise due to the simplification of the model system.
Random errors occur due to the quickened change in experimental surroundings due to noise and tiredness in the working persons.