Question detail

Which of the following describes the relationship between energy transfer and particle potential energy during a change of state (Changes of state and specific latent heat)

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Internal energy and energy transfers

Question

  1. A. Energy transfer increases kinetic energy.
  2. B. Energy transfer changes potential energy without changing kinetic energy.
  3. C. Energy transfer decreases potential energy.
  4. D. Energy transfer has no effect on particle energy.

Answer

The correct answer is Energy transfer changes potential energy without changing kinetic energy..

Explanation

Unit lens: Check the units before giving the final statement so the physics quantity is not swapped. This question asks: Which of the following describes the relationship between energy transfer and particle potential energy during a change of state (Changes of state and specific latent heat). The correct response is Energy transfer changes potential energy without changing kinetic energy., because density links mass and volume, so the answer must preserve which quantity is being calculated. In Changes of state and specific latent heat, the marking point should connect directly to recall and apply the equation energy for a change of state = mass x specific latent heat. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Internal energy and energy transfers, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 385 is distinct because it uses this exact question context and the unit lens rather than a generic particle-model sentence.

Common mistake

Misunderstanding Specific Latent Heat

Students often confuse specific latent heat with specific heat capacity, thinking both relate to temperature changes.

Emphasize that specific latent heat refers to energy needed for a change of state without temperature change, while specific heat capacity relates to temperature change.

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