Question detail
Forces and elasticity scenario: liquid pressure increases with depth below the surface. Which answer best addresses Required practical: force and extension and the objective to describe how to add known loads to a spring safely and measure its new length?
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 fluid depth scenario, apply spring to describe how to add known loads to a spring safely and measure its new length while keeping elastic versus plastic deformation separate.
- B. In the fluid depth scenario, mix up elastic versus plastic deformation and ignore spring.
- C. Use a general revision statement without applying Required practical: force and extension to the situation.
- D. Choose a different forces topic instead of explaining describe how to add known loads to a spring safely and measure its new length.
Answer
The correct answer is: In the fluid depth scenario, apply spring to describe how to add known loads to a spring safely and measure its new length while keeping elastic versus plastic deformation separate.
Explanation
The correct option is In the fluid depth scenario, apply spring to describe how to add known loads to a spring safely and measure its new length while keeping elastic versus plastic deformation separate.. It is correct because the scenario says liquid pressure increases with depth below the surface, which must be interpreted through Required practical: force and extension. This directly supports the learning objective to describe how to add known loads to a spring safely and measure its new length. Use values 3, 5, and 17 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
Adding Loads to a Spring
Students often forget to ensure the spring is securely fixed before adding loads, leading to inaccurate measurements.
Always secure the spring to a stable surface before adding loads to ensure accurate length measurements.
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