Standard Science Primary 6 Interactions

A spring extends by 2 cm when a 50g load is added. If the original length of the spring is 10 cm, what is the total length when a 150g load is added?

A 18 cm
B 12 cm
C 14 cm
D 16 cm
Show Worked Solution

Worked Solution

Step 1: Extension for 50g = 2 cm. Step [2-9]: Extension for 150g (3 times weight) = 2 cm x 3 = 6 cm. Step [2-9]: Total length = Original length (10 cm) + Extension (6 cm) = 16 cm.

Correct answer: 16 cm

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free