Flashcards in Practical skills - paper 1 and 2 Deck (15)
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1
Define an indépendant variable
The one variable that you change
2
Define a dependant variable
The variable that you measure
3
Define a control variable
Any variable you keep the same to make it a fair test
4
Define directly proportional
If one variable increases the other variable increases at the same rate. eg if x doubles then y must double
5
Define inversely proportional
If one variable increases the other variable decreases at the same rate. eg if x doubles then y must halve
6
Define an anomalous result
An result which does fit the pattern of trend
7
Define interval
The spacing between measurements eg 0, 10, 20, 30 40, 50 cm would have an interval of 10
8
Define range
The maximum and minimum values eg 0, 10, 20, 30, 40, 50 would have a range of 50 - 0 cm
9
Define resolution
The smallest change that can be measured with a particular piece of equipment
10
How can the uncertainty in a measurement be measured?
Half of the range
11
When should you draw a line graph
When both variables are continuous
12
When should you draw a bar graph
If one of the variables is discrete or categoric
13
Define a continuos variable
Can be recored as any number eg time, mass, volume
14
Define a discrete variable
Can be recored only as a whole number eg number of goals in a match
15
