Standard Science Primary 6 Interactions

A spring stretches by 4 cm when a 20g load is added. What is the extension of the same spring when a 60g load is added?

A 12 cm
B 16 cm
C 10 cm
D 8 cm
Show Worked Solution

Worked Solution

Step 1: Extension is proportional to the load. Step 2: 60g is 3 times the load of 20g. Step 3: Extension = 4 cm x 3 = 12 cm.

Correct answer: 12 cm

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