Question detail

In a specific heat capacity experiment, why is insulation used?

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. To prevent heat loss to the surroundings
  2. B. To increase the temperature of the substance
  3. C. To decrease the mass of the substance
  4. D. To change the state of the substance

Answer

The correct answer is To prevent heat loss to the surroundings.

Explanation

Method lens: First identify the measured quantity, then match the equation or particle idea to the command word. This question asks: In a specific heat capacity experiment, why is insulation used. The correct response is To prevent heat loss to the surroundings, because specific heat capacity links energy, mass, material and temperature change. In Temperature changes in a system and specific heat capacity, the marking point should connect directly to required practical activity 1: determine the specific heat capacity of one or more materials. 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 332 is distinct because it uses this exact question context and the method lens rather than a generic particle-model sentence.

Common mistake

Misunderstanding Specific Heat Capacity

Students often confuse specific heat capacity with total thermal energy, thinking it represents the total energy stored in a substance rather than the energy required to change its temperature.

Emphasize that specific heat capacity is defined as the energy needed to raise the temperature of one kilogram of a substance by one degree Celsius, and clarify that it is a property of the material, not the total energy.

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