Question detail
Work done and energy transfer scenario: weight and normal contact force act on one object. Which answer best addresses Energy transfer and braking and the objective to link larger braking forces to greater work done over a given distance?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Work done and energy transfer
Question
- A. In the book on table scenario, apply braking to link larger braking forces to greater work done over a given distance while keeping distance versus displacement separate.
- B. In the book on table scenario, mix up distance versus displacement and ignore braking.
- C. Use a general revision statement without applying Energy transfer and braking to the situation.
- D. Choose a different forces topic instead of explaining link larger braking forces to greater work done over a given distance.
Answer
The correct answer is: In the book on table scenario, apply braking to link larger braking forces to greater work done over a given distance while keeping distance versus displacement separate.
Explanation
The correct option is In the book on table scenario, apply braking to link larger braking forces to greater work done over a given 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 Energy transfer and braking. This directly supports the learning objective to link larger braking forces to greater work done over a given distance. Use values 3, 5, and 18 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
Misunderstanding Work Done
Students often confuse work done with the total energy transferred, not realizing that work done is specifically the energy transferred when a force moves an object through a distance.
To fix this, students should focus on the definition of work done as energy transferred by a force acting over a distance, and practice using the equation W = F x s to reinforce this concept.
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