Question detail
What is the unit of spring constant?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Forces and elasticity
Question
- A. N/m
- B. J/kg
- C. kg/m
- D. N
Answer
N/m
Explanation
The spring constant is measured in newtons per metre (N/m), which indicates how much force is needed to stretch or compress the spring by one metre.
Common mistake
Common Mistake in Hooke's Law
Students often confuse the spring constant with the force applied, leading to incorrect calculations of extension.
Remember that the spring constant (k) is a measure of stiffness and should be used as a multiplier in the equation F = k x e, where F is the force and e is the extension.
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