Energy

1 Energy Stores and Systems Describe energy stores and identify how energy is transferred between stores in different systems. Spec 6.1.1.1 2 Changes in Energy Calculate kinetic energy, gravitational potential energy and elastic potential energy. Spec 6.1.1.2 3 Energy Changes in Systems Use specific heat capacity to calculate energy changes when substances are heated or cooled. Spec 6.1.1.3 4 Power Define power as rate of energy transfer and calculate power from energy and time. Spec 6.1.1.4 5 Energy Transfers in a System Describe how energy is conserved, dissipated and how unwanted transfers can be reduced. Spec 6.1.2.1 6 Efficiency Calculate efficiency as a decimal or percentage and interpret Sankey diagrams. Spec 6.1.2.2 7 Energy Resources Compare renewable and non-renewable energy resources, their uses and environmental impacts. Spec 6.1.3 8 Thermal Conductivity and Reducing Unwanted Energy Transfers Explain thermal conductivity and describe how insulation reduces unwanted energy transfers. Spec 6.1.3 (physics only)