Question detail
A spring with a spring constant of 200 N/m is stretched by an extension of 0.4 m. Calculate the force applied to the spring Explain your answer using Required practical: force and extension and extension.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Forces and elasticity
Question
A spring with a spring constant of 200 N/m is stretched by an extension of 0.4 m. Calculate the force applied to the spring Explain your answer using Required practical: force and extension and extension.
Answer
80 N
Explanation
A strong answer should address calculate extension by subtracting original length from stretched length directly. Use the context of Required practical: force and extension within Forces and elasticity, then state the relevant forces or motion reasoning with units where needed. The answer is correct when it names the key physics quantity, keeps elastic and plastic deformation distinct, and links the conclusion back to the approved learning objective.
Common mistake
Common Mistake in Extension Calculation
Students often forget to convert the original length and stretched length into the same units before subtracting to find the extension.
Always ensure that both lengths are in the same unit (e.g., both in meters) before performing the subtraction to calculate the extension.
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