Question detail

Forces and elasticity scenario: air resistance changes until terminal velocity is reached. Which answer best addresses Required practical: force and extension and the objective to plot a force-extension graph using appropriate scales and units?

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 parachutist scenario, apply graph to plot a force-extension graph using appropriate scales and units while keeping elastic versus plastic deformation separate.
B. In the parachutist scenario, mix up elastic versus plastic deformation and ignore graph.
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 plot a force-extension graph using appropriate scales and units.

Answer

The correct answer is: In the parachutist scenario, apply graph to plot a force-extension graph using appropriate scales and units while keeping elastic versus plastic deformation separate.

Explanation

The correct option is In the parachutist scenario, apply graph to plot a force-extension graph using appropriate scales and units while keeping elastic versus plastic deformation separate.. It is correct because the scenario says air resistance changes until terminal velocity is reached, which must be interpreted through Required practical: force and extension. This directly supports the learning objective to plot a force-extension graph using appropriate scales and units. Use values 7, 5, and 15 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

Incorrect Graph Scaling

Students often use inconsistent scales on the axes of the force-extension graph, leading to misinterpretation of the data.

Ensure that both axes are scaled appropriately and consistently, using equal increments to accurately represent the relationship between force and extension.

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