Standard Science Primary 6 Interactions

A spring balance is used to measure the weight of an object. Which property of the spring is being utilized?

A The extension of the spring is proportional to the force applied.
B The spring can only be stretched once.
C The spring produces heat when it is stretched.
D The spring becomes stronger as it is stretched.
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Worked Solution

Step 1: Understand how a spring balance works. Step [2-9]: When an object is hung, gravity pulls it, stretching the spring. Step [2-9]: The amount of extension correlates directly to the weight (force) of the object.

Correct answer: The extension of the spring is proportional to the force applied.

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