Advanced Science Primary 6 Interactions

The graph shows the extension of a spring when different weights are hung on it. What is the extension when a 150g weight is hung on the spring?

A 12 cm
B 9 cm
C 3 cm
D 6 cm
Show Worked Solution

Worked Solution

Step 1: From the graph, 50g causes 3cm extension. Step [2-9]: 150g is three times 50g. Step [2-9]: Extension = 3cm x 3 = 9cm.

Correct answer: 9 cm

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