Standard Science Primary 6 Interactions

A spring is compressed by a force. Which of the following occurs when the force is removed?

A The spring becomes longer than its original length.
B The spring loses its mass.
C The spring returns to its original length due to elastic spring force.
D The spring stays compressed.
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Worked Solution

Step 1: Compression stores elastic potential energy in the spring. Step 2: Elastic spring force acts in the opposite direction of the compression. Step 3: When the external force is removed, this internal force restores the spring to its original state.

Correct answer: The spring returns to its original length due to elastic spring force.

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