Question detail

Which of the following distinguishes temperature from internal energy?

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. Temperature measures average kinetic energy, while internal energy measures total energy.
  2. B. Temperature is a measure of potential energy, while internal energy is kinetic energy.
  3. C. Temperature is always constant, while internal energy varies.
  4. D. Temperature is measured in joules, while internal energy is in degrees Celsius.

Answer

The correct answer is Temperature measures average kinetic energy, while internal energy measures total 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 distinguishes temperature from internal energy. The correct response is Temperature measures average kinetic energy, while internal energy measures total energy., because internal energy combines particle kinetic and potential energy. In Internal energy, the marking point should connect directly to define internal energy as the total kinetic energy and potential energy of all particles in a system. 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 217 is distinct because it uses this exact question context and the unit lens rather than a generic particle-model sentence.

Common mistake

Confusing Internal Energy with Temperature

Students often confuse internal energy with temperature, thinking they are the same concept.

Internal energy is the total kinetic and potential energy of all particles in a system, while temperature is a measure of the average kinetic energy of those particles. It's important to distinguish between the two when discussing energy changes.

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