Principle of Lever

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Principle of Lever
Description: How to use the least effort to pick up a heavy object? In this experiment, students learn to use the scientific knowledge of the Principle of Lever to solve the problem: to find out the best method (by adjusting the length of the ruler) and using the least effort (by courting the number of weights) to pick up a heavy object. They are able to know the fulcrum point of forces by the tests.
School: HKFYG Lee Shau Kee Primary School (P.6)