AQA GCSE Science 2016 - Subject Specific Vocabulary
Key words from AQA Glossary of Terms
Terms in this set (28)
A measurement that is close to the true value.
Marking a scale on a measuring instrument, this involves establishing the relationship using standard quantity values as a reference.
Information, either quantitative (involving numbers) or qualitative.
Difference between the measured value and the true value.
Values in a set of results not judged to be part of the pattern.
Present when any measurement is made and cannot be corrected. Effect can be reduced by taking more measurements and recalculating the mean.
Cause readings to differ from the true value by a consistent amount each time a measurement is made.
Any indication that a measuring system gives a false reading when the true value of the measured quantity is zero.
Data which has been shown to be valid.
A series of experiments in which only the independent variable has been allowed to affect the dependent variable.
A proposal intended to explain certain facts or observations.
The quantity between readings.
Precise measurements are ones in which there is very little spread about the mean value.
A statement suggesting what will happen in the future, based on observation, experience or a hypothesis.
From the maximum to the minimum value of an independent or dependent variable; important in ensuring that a pattern can be detected.
If the original experimenter does the investigation again using the same method and equipment and obtains the same results.
If the investigation is repeated by another person using different equipment or techniques and obtains the same results.
The smallest change in the quantity being measured on a measuring instrument that gives a perceptible change in reading.
The interval within which the true value can be expected to lie.
Suitability of an experimental procedure to answer the question being asked.
A conclusion supported by valid data obtained from an appropriate experimental design and based on sound reasoning.
Variable that have labels such as types of or names of.
Variable that can have values that can be a magnitude by counting or measuring.
Variable which, in addition to the independent variable, can affect the investigation so needs to be kept constant.
Variable which is being measured for each value of the independent variable.
The variable for which the values are changed by the investigator.
The value that would have been obtained in an ideal measurement
A line graph showing the general shape of the relationship between two variables. Axes should be labelled but no points plotted.
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