Advanced Science Primary 6 Interactions

A spring extends by 4 cm when a 20g load is hung on it. If the load is increased to 50g, what will the TOTAL extension of the spring be?

A 12 cm
B 10 cm
C 6 cm
D 8 cm
Show Worked Solution

Worked Solution

Step 1: Extension per gram = 4cm / 20g = 0.2 cm/g. Step [2-9]: Extension for 50g = 50g x 0.2 cm/g = 10 cm. Step [2-9]: Therefore, the total extension is 10 cm.

Correct answer: 10 cm

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