Part 1 of 2

Heating a block of aluminium

identify / explain

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identify: name or select. explain: give reasons and connect them to evidence.

Two aluminium blocks have the same mass. Block A is at 20 °C and block B is at 60 °C. Which statement is correct? Then explain your choice.

Choose one answera.They have the same internal energy, because they have the same massb.Block A has more internal energy, because its particles are packed more tightlyc.Block B has more internal energy, because its temperature is higherd.Neither block has any internal energy until it is heated

Why?

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Scope and sources

Cambridge IGCSE Physics 0625 · 2026–2028 v2 · Original learning materials.

A rise in the temperature of an object increases its internal energy (2.2.2.1); the rise in temperature in terms of an increase in the average kinetic energy of its particles (2.2.2.2); specific heat capacity as the energy needed per unit mass per unit temperature increase, with c = ΔE ÷ (m Δθ) (2.2.2.3); experiments to measure the specific heat capacity of a solid and of a liquid (2.2.2.4). Changes of state, melting and boiling, are in MELT01; conduction, convection and radiation are in TRANS01.

Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.

Official Cambridge syllabus