| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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The energy efficiency for any energy transfer can be calculated using the
equation:
efficiency = useful output energy transfer / total input energy transfer |
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What is the equation used to calculate energy efficiency? GCSEpod: Energy Efficiency
Practice calculations for efficiency:
http://moodle.bishopston.swansea.sch.uk/pluginfile.php/9398/mod_resource/content/0/Core_Physics/Electrical_Energy/Efficiency_Worksheet.doc |
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Students should be able to explain ways of reducing unwanted energy transfers, for example through lubrication and the use of thermal insulation.
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What two ways can be used to reduce unwanted energy transfers? Marketplace activity: How to reduce unwanted energy transfers |
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(HT only) Students should be able to describe ways to increase the efficiency of an intended energy transfer. |
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(HT) How is the efficiency of an intended energy transfer increased? Present the efficiency equation and ask students "Thinking quantitatively, how could efficiency be increased?" |
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