Question detail
What is the unit of the spring constant in Hooke's law?
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. Newtons per meter (N/m)
- B. Kilograms (kg)
- C. Joules (J)
- D. Pascals (Pa)
Answer
Newtons per meter (N/m)
Explanation
The spring constant is a measure of stiffness and is expressed in units of force per unit length, which is Newtons per meter (N/m).
Common mistake
Misunderstanding Proportionality
Students often confuse the relationship between force and extension, thinking that extension is proportional to force beyond the limit of proportionality.
Remember that extension is only directly proportional to force up to the limit of proportionality; beyond this point, the relationship changes.
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