Representing and Analysing Data (VCE SSCE Physics): Flashcards

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Representing and Analysing Data
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Linearise

Transform data so straight line of best fit can be drawn

Gradient

Rate of change of one variable with respect to another

Independent variable axis

Horizontal axis (x-axis)

Dependent variable axis

Vertical axis (y-axis)

Horizontal uncertainty bars show

Uncertainty in the independent variable

Vertical uncertainty bars show

Uncertainty in the dependent variable

Gradient formula

y2y1x2x1\frac{y_2 - y_1}{x_2 - x_1} or riserun\frac{rise}{run}

Linearise yx2y \propto x^2

Square the independent variable

Line of best fit and uncertainty bars

Must pass through all uncertainty bars

Linearised graph through origin means

Proportional relationship between variables

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