Question detail

Forces and elasticity scenario: a force meter stretches a spring and the extension is measured. Which answer best addresses Hooke's law and spring constant and the objective to interpret spring constant as a measure of stiffness?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Forces and elasticity

Question

A. In the spring test scenario, apply spring constant to interpret spring constant as a measure of stiffness while keeping elastic versus plastic deformation separate.
B. In the spring test scenario, mix up elastic versus plastic deformation and ignore spring constant.
C. Use a general revision statement without applying Hooke's law and spring constant to the situation.
D. Choose a different forces topic instead of explaining interpret spring constant as a measure of stiffness.

Answer

The correct answer is: In the spring test scenario, apply spring constant to interpret spring constant as a measure of stiffness while keeping elastic versus plastic deformation separate.

Explanation

The correct option is In the spring test scenario, apply spring constant to interpret spring constant as a measure of stiffness while keeping elastic versus plastic deformation separate.. It is correct because the scenario says a force meter stretches a spring and the extension is measured, which must be interpreted through Hooke's law and spring constant. This directly supports the learning objective to interpret spring constant as a measure of stiffness. Use values 6, 5, and 19 only if the question asks for a calculation. The answer earns credit by naming the relevant force or motion quantity, using units when needed, and avoiding the boundary error elastic versus plastic deformation.

Common mistake

Misunderstanding Spring Constant

Students often confuse the spring constant with the amount of force applied to the spring, thinking that a higher force means a higher spring constant.

Remember that the spring constant is a measure of stiffness, indicating how much force is needed to stretch or compress the spring by a certain amount. It is not directly related to the force applied.

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