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Physics · Triple Science

Energy

Spec 4.1 Paper 1 📙 Higher

Subtopics

Energy Stores and SystemsSpec 6.1.1.1Describe energy stores and identify how energy is transferred between stores in different systems. + Changes in EnergySpec 6.1.1.2Calculate kinetic energy, gravitational potential energy and elastic potential energy. + Energy Changes in SystemsSpec 6.1.1.3Use specific heat capacity to calculate energy changes when substances are heated or cooled. + PowerSpec 6.1.1.4Define power as rate of energy transfer and calculate power from energy and time. + Energy Transfers in a SystemSpec 6.1.2.1Describe how energy is conserved, dissipated and how unwanted transfers can be reduced. + EfficiencySpec 6.1.2.2Calculate efficiency as a decimal or percentage and interpret Sankey diagrams. + Energy ResourcesSpec 6.1.3Compare renewable and non-renewable energy resources, their uses and environmental impacts. + Thermal Conductivity and Reducing Unwanted Energy TransfersSpec 6.1.3 (physics only)Explain thermal conductivity and describe how insulation reduces unwanted energy transfers. +

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Key Equations

KE = ½mv²

GPE = mgh

E = QΔθ

Efficiency = useful output ÷ total input

⭐ Higher Tier Content

Elastic potential energy: E = ½ke²

Derivation of KE formula

🔬 Triple Science Extensions

Thermal conductivity and insulation (RP2)

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