Advanced Science Primary 6 Interactions

Two identical springs, P and Q, are joined end-to-end. A 100g weight is hung at the bottom. If spring P extends by 2 cm, what is the total extension of the combined springs?

A 2 cm
B 4 cm
C 1 cm
D 8 cm
Show Worked Solution

Worked Solution

Step 1: In a series arrangement (end-to-end), each spring experiences the full weight. Step [2-9]: Both identical springs P and Q will extend by 2 cm each. Step [2-9]: Total extension = 2cm + 2cm = 4cm.

Correct answer: 4 cm

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