Uncertainty in Measurement and Sources of Error

These flashcards cover key concepts related to uncertainty in measurements, types of errors in experiments, and their implications.

What is the last digit in a measurement typically considered to be?

The estimated digit.

In the measurement 9.36 cm, what does the '6' represent?

The uncertain digit.

What is systematic error?

Error caused by limitations of the measuring instrument.

What type of error is affected by the skill of the experimenter?

Random error.

How do you report a measurement that is between 44 ml and 45 ml after estimating uncertainty?

Approximately 44.5 ml.

What is a common characteristic of random errors?

They do not have a predictable pattern.

What is an example of systematic error mentioned in the notes?

A weighing scale not calibrated correctly.

How can systematic errors impact measurement value?

They can consistently cause measurement values to be too large or too small.

What does the term 'human error' refer to in the context of measurements?

Errors caused by the experimenter's skill while performing measurements.

What should be done when an instrument does not zero correctly?

Identify it as a zero setting error.