Working as a Physicist

Question 1

How close a measurement is to a true value, influenced by systematic and random errors of that measurement
EG how close a measurement for gravity is to 9.81

Answer 1

Accuracy

Question 2

The set of seven basic measures from which all other SI units can be derived
Eg - Amps, Kg, S

Answer 2

Base Units

Question 3

Making a reasonable approximation of a value in order to check a calculation or make a quick comparison to another value

Answer 3

Estimation

Question 4

How close to a set of repeated measurements are to one another but not the true value, influenced by the random error of those measurements

Answer 4

Precision

Question 5

The unpredictable variation in a measurement. These can be reduced by taking many repeated measurements and calculating their mean

Answer 5

Random Error

Question 6

An experiment is said to be repeatable if the same person with the same set of equipment obtains the same results when doing the same experiment a number of times, over a short time period

Answer 6

Repeatability

Question 7

An experiment is said to be reproducible if different people with different equipment, measuring the same quantity, get simular results

Answer 7

Reproducibility

Question 8

The smallest interval that a given measuring device can measure

Answer 8

Resolution

Question 9

A consistent shift in readings causing a deviation from the true value. This shift is due to the equipment or method being used and cannot be reduced by repeated measurements

Answer 9

Systematic error

Question 10

The range of values that could reasonably contain the true value of a measurement, based on the confidence an experimenter has about their result

Answer 10

Uncertainty