Isa Words Flashcards
(26 cards)
Prediction
What you think will happened in an experiment
Continuous Variable
A variable which can have any numerical value
Valid
The results and conclusions will be this is the variables are correctly controlled
Dependent variable
This is the variable that changes as a result of a change in the independent variable
Fair test
This is where only the independent variable is changed and the others are controlled
Uncertainty
The range around a true value. For example 20 +/- 2cm
Hypothesis
A scientific statement that explains certain facts or observations
Measurement error
The difference between the real value and the measured value
Interval
This is the difference between the values of your independent variable
Anomaly
A result that does not fit the pattern
Data
Info or measurements you collect
Random error
This error causes measurements to be spread around the true value
Datum
One piece of information
Zero error
When a piece of measuring equipment should be reading zero but doesn’t
Systematic error
This is an error that is always the same in each repeat of the experiment
Accuracy
How close the reading is to the true value
Resolutions
The smallest change that can be read from a measuring device for example a ruler
Precision
This is determined by the scale on the measuring apparatues
Repeatable
If the same person can get the same reading using the same equipment and method
Calibration
When we make sure that measuring apparatus is making the correct readings
Categoric variable
A variable that can be described by a label or category such as colour or surface
True value
This is the real value of a measurement in a experiment
Control variable
Variables that remain constant
Reproducible
If another person can get the same result using the same method and equipment or with different method or equipment
