Reducing friction: analysis
Lesson 8 / 10
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Lesson outcome
I can analyse data from an investigation to test the effectiveness of different lubricants.
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Categoric variables come in distinct types. Continous variables can take any value on a numerical scale.
Bar charts are used when the variable you changed in an experiment is categoric.
An effective lubricant reduces the friction force.
A conclusion states what you found out in an experiment and also explains how you know.
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