Proportionality Playground

Change one thing. Watch what happens to the other. Work out the rule.

Proportionality Playground is a tool for discovering whether y is proportional to x, x-squared, 1/x or 1/x-squared in GCSE and A Level Physics practical skills. Investigate a hidden relationship using the doubling test, classify it, then prove your answer with a prediction.

Output quantity y

0.00

Input quantity x

x = 0.50

Workspace

Results table

You read the values. You write them down. Nothing is filled in for you.

x y

Guided investigation

    What is the relationship?

    Prediction challenge

    Lock in your classification to receive a prediction challenge.