Question detail

Work done and energy transfer scenario: weight and normal contact force act on one object. Which answer best addresses Work done by a force and the objective to calculate force from work done and distance?

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

Work done and energy transfer

Question

A. In the book on table scenario, apply work done to calculate force from work done and distance while keeping distance versus displacement separate.
B. In the book on table scenario, mix up distance versus displacement and ignore work done.
C. Use a general revision statement without applying Work done by a force to the situation.
D. Choose a different forces topic instead of explaining calculate force from work done and distance.

Answer

The correct answer is: In the book on table scenario, apply work done to calculate force from work done and distance while keeping distance versus displacement separate.

Explanation

The correct option is In the book on table scenario, apply work done to calculate force from work done and distance while keeping distance versus displacement separate.. It is correct because the scenario says weight and normal contact force act on one object, which must be interpreted through Work done by a force. This directly supports the learning objective to calculate force from work done and distance. Use values 2, 12, and 16 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 distance versus displacement.

Common mistake

Confusing Work Done and Force

Students often confuse the concepts of work done and force, mistakenly thinking that they are the same quantity.

Remember that work done is the energy transferred when a force moves an object through a distance. Use the equation W = F x d to differentiate between the two.

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