Standard Science Primary 6 Interactions

A spring has an original length of 12 cm. When a 50g load is hung on it, its length becomes 15 cm. What will the extension of the spring be if a 100g load is used?

A 3 cm
B 6 cm
C 18 cm
D 24 cm
Show Worked Solution

Worked Solution

Step 1: Extension for 50g = 15cm - 12cm = 3cm. Step [2-9]: 100g is double the load of 50g. Step [2-9]: Therefore, extension = 3cm x 2 = 6cm.

Correct answer: 6 cm

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