Changes of state and energy transfer
What Changes of state and energy transfer means in Combined Science GCSE, as defined for AQA.
Definitions of Changes of state and energy transfer
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Reference: AQA
Heating transfers energy to the particles so they vibrate or move faster, and freezing and condensing are the reverse changes as energy is transferred away.
Heating transfers energy to the particles, increasing their kinetic energy, and at melting and boiling points the arrangement changes.
Energy increases particle motion and weakens the forces holding particles together, as in melting or boiling.
Topics that use Changes of state and energy transfer
- Density of materials (AQA GCSE)
- The three states of matter (AQA GCSE)
Related terms
- Boiling point
- Bonding and structure
- Changes of state
- Comparing temperature with fixed points
- Density
- Density and particle spacing
- Displacement technique
- Effect of pressure on change of state
Using Changes of state and energy transfer in the exam
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