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Internal energy and energy transfers common mistakes

Study Internal energy and energy transfers with curriculum-aligned Common Mistakes resources, practice links, and exam-focused support.

At a glance

common mistakes

Resource type

Topic

Internal energy and energy transfers

AqaGcsePhysicsParticle model of matter

Common mistakes

  • Confusing Energy Transfer During State Change

    Students often think that energy transferred during a change of state increases the average kinetic energy of particles.

    Fix itRemember that during a change of state, the energy transferred changes the potential energy of the particles, not their average kinetic energy.

  • Misunderstanding Flat Sections

    Students often misinterpret the flat sections of heating and cooling graphs as periods of no energy transfer.

    Fix itExplain that during these flat sections, energy is being transferred to change the state of the substance, even though the temperature remains constant.

  • Misinterpreting Graphs

    Students often confuse the flat sections of a temperature-time graph during a change of state with periods of temperature change.

    Fix itRemember that flat sections indicate a change of state where temperature remains constant, while sloped sections show temperature changes.

  • Confusing Specific Latent Heat with Temperature Change

    Students often confuse specific latent heat with temperature change, thinking that energy transferred during a state change affects temperature.

    Fix itRemember that specific latent heat refers to the energy needed to change the state of a substance without changing its temperature. Focus on how energy affects particle arrangement rather than kinetic energy.