Question detail
A spring has a spring constant of 300 N/m and is extended by 0.15 m. Calculate the force applied to the spring Explain your answer using Hooke's law and spring constant and force.
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 has a spring constant of 300 N/m and is extended by 0.15 m. Calculate the force applied to the spring Explain your answer using Hooke's law and spring constant and force.
Answer
45 N
Explanation
A strong answer should address calculate spring constant from force and extension directly. Use the context of Hooke's law and spring constant 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 Spring Constant Calculation
Students often confuse the units of spring constant, using N instead of N/m.
Remember that the spring constant is defined as the force per unit extension, so it must be expressed in newtons per metre (N/m).
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