Edexcel International GCSE Physics4b Energy transfers Checklist

Papers 1 and 2

• I can describe energy transfers involving energy stores:•energy stores: chemical, kinetic, gravitational, elastic, thermal, magnetic, electrostatic, nuclear•energy transfers: mechanically, electrically, by heating, by radiation (light and sound)
• I can use the principle of conservation of energy.
• I know and can use the relationship between efficiency, useful energy output and total energy output: efficiency = (useful energy output / total energy output) × 100%
• I can describe a variety of everyday and scientific devices and situations, explaining the transfer of the input energy using this relationship, including showing it in Sankey diagrams.
• I can describe how thermal energy transfer can take place by conduction, convection and radiation.
• I can explain the role of convection in everyday phenomena.
• I can explain how the emission and absorption of radiation are related to surface and temperature.
• Practical: I can investigate thermal energy transfer by conduction, convection and radiation.
• I can explain ways of reducing unwanted energy transfer, such as insulation.