In a seesaw, what happens when the fulcrum is moved closer to the heavier child?

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A The lighter child needs more effort
B The heavier child goes higher
C The lighter child can easily lift the heavier child
D Nothing changes

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Answer: C. The lighter child can easily lift the heavier child

Moving the fulcrum closer to the heavier child makes that child's arm shorter and the lighter child's arm longer. Since weight x arm length must balance, the lighter child now needs less effort and can lift the heavier one.

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In a seesaw, what happens when the fulcrum is moved closer to the heavier child?

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