HOTS Science Primary 6 Interactions

Three identical springs, X, Y, and Z, are arranged differently. X and Y are in parallel supporting a 100g load, while Z is alone supporting a 100g load. Which statement is correct?

A The total extension of X and Y is equal to Z.
B Spring X extends more than Spring Z.
C Spring Z extends twice as much as Spring X.
D Spring Y and Spring Z have the same extension.
Show Worked Solution

Worked Solution

Step 1: When springs are in parallel, the load is shared equally between them. Step [2-9]: X and Y each support 50g, while Z supports the full 100g. Step [2-9]: Since the springs are identical, Z will extend twice as much as X.

Correct answer: Spring Z extends twice as much as Spring X.

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