Advanced Science Primary 6 Interactions

Two different springs, X and Y, have the same original length. When a 2N weight is hung on each, Spring X extends by 4cm while Spring Y extends by 6cm. Which spring is STIFFEST?

A Spring Y
B Spring X
C Insufficient information
D They have the same stiffness
Show Worked Solution

Worked Solution

Step 1: Stiffness refers to the resistance to extension. Step 2: Spring X extended less (4cm) than Spring Y (6cm) for the same weight. Step 3: Therefore, Spring X is harder to stretch and is the stiffest.

Correct answer: Spring X

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