Solved
Fair test Correct Ans-A fair test is one in which only the independent variable has been
allowed to affect the dependent variable.
Hypothesis Correct Ans-a proposal intended to explain certain facts or observations
Interval Correct Ans-The quantity between readings, eg a set of 11 readings equally spaced
over a distance of 1 metre would give an interval of 10 centimetres.
Precision Correct Ans-Precise measurements are ones in which there is very little spread
about the mean value. Precision depends only on the extent of random errors - it gives no
indication of how close results are to the true value.
Prediction Correct Ans-A prediction is a statement suggesting what will happen in the
future, based on observation, experience or a hypothesis.
, A level Physics AQA Paper 3A Key Vocabulary 100%
Solved
Range Correct Ans-The maximum and minimum values of the independent or dependent
variables; important in ensuring that any pattern is detected.
Repeatability Correct Ans-A measurement is repeatable if the original experimenter
repeats the investigation using same method and equipment and obtains the same results.
Reproducible Correct Ans-A measurement is reproducible if the investigation is repeated
by another person, or by using different equipment or techniques, and the same results are
obtained.
Accuracy Correct Ans-Measurement close to the true value
Calibration Correct Ans-Marking a scale on a measuring instrument.