Advanced Science Primary 6 Interactions

The table shows the length of a spring when different weights are hung on it. What is the original length of the spring?

A 5 cm
B 10 cm
C 15 cm
D 20 cm
Show Worked Solution

Worked Solution

Step 1: Observe the pattern: every 50g increases the length by 5cm. Step 2: At 50g, length is 15cm. Step 3: Subtract the 5cm extension to find the length at 0g. Step 4: 15cm - 5cm = 10cm.

Correct answer: 10 cm

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