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A level physics question

so, I learned that the independent variable goes on the x axis and the dependent goes on y axis. To find young modulus we alter the mass hence force (independent) in order to see the change in extension (dependent). Then why is the force on y axis and extension on x axis in the markscemes and the videos I watched.
Original post by batoolfatymah
so, I learned that the independent variable goes on the x axis and the dependent goes on y axis. To find young modulus we alter the mass hence force (independent) in order to see the change in extension (dependent). Then why is the force on y axis and extension on x axis in the markscemes and the videos I watched.

As a general rule yes but you can put whatever you want on either axis depending on the situation. This way your gradient will be stress/strain and so directly gives you Young's modulus.

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