Question detail
Forces and elasticity scenario: weight and normal contact force act on one object. Which answer best addresses Stretching and deformation and the objective to apply WS 2.2, WS 2.3 and WS 3.5 skills when planning and evaluating extension investigations?
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. In the book on table scenario, apply extension to apply WS 2.2, WS 2.3 and WS 3.5 skills when planning and evaluating extension investigations while keeping elastic versus plastic deformation separate.
- B. In the book on table scenario, mix up elastic versus plastic deformation and ignore extension.
- C. Use a general revision statement without applying Stretching and deformation to the situation.
- D. Choose a different forces topic instead of explaining apply WS 2.2, WS 2.3 and WS 3.5 skills when planning and evaluating extension investigations.
Answer
The correct answer is: In the book on table scenario, apply extension to apply WS 2.2, WS 2.3 and WS 3.5 skills when planning and evaluating extension investigations while keeping elastic versus plastic deformation separate.
Explanation
The correct option is In the book on table scenario, apply extension to apply WS 2.2, WS 2.3 and WS 3.5 skills when planning and evaluating extension investigations while keeping elastic versus plastic deformation separate.. It is correct because the scenario says weight and normal contact force act on one object, which must be interpreted through Stretching and deformation. This directly supports the learning objective to apply WS 2.2, WS 2.3 and WS 3.5 skills when planning and evaluating extension investigations. Use values 6, 6, and 11 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 Extension Measurements
Students often confuse extension with the total length of the object when measuring how much a spring has stretched.
To fix this, remember that extension is the increase in length from the original length, so always subtract the original length from the new length after stretching.
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