Physics- Precision, Accuracy, Uncertainty in Measurement

For theories to be developed and tested, it is necessary to:

It is impossible to read and take the accurate value of the quantity we want to measure because:

Switching from an Analog stopwatch to a digital stopwatch

ACCURACY

PRECISION

Degree of Precision with different instruments

The choice of any instrument used is only one of the factors affecting the accuracy of the reading:

UNCERTAINTY

RANDOM ERRORS