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Diagrams can be used to show how energy is transferred from one store to another. Two examples are the transfer diagram and the Sankey diagram. Transfer diagrams In transfer diagrams...
Energy flow diagrams Diagrams can be used to show how energy is transferred from one store to another. Two examples are the transfer diagram and the Sankey diagram.
• the efficiency is a measure of how much of the input energy to a process or device appears as useful output energy; 1.4.12 recall, demonstrate an understanding and use the equation efficiency = useful output energy total input energy quoting the efficiency as a decimal or a percentage; Work Students should be able to:
GCSE Physics AQA Revision Notes 1. Energy 1.1 Energy Changes in a System 1.1.16 Improving Efficiency 1.1.16 Improving Efficiency Revision Notes Topic Questions Improving Efficiency (HT only) The efficiency of a device can be improved by reducing the amount of wasted energy transferred Machines waste energy due to:
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BBC Bitesize – Energy transfers and efficiency. Pass My Exams – Work and Energy. GCSE Boardworks – Work and Power Section. Mini White Boards based on teacher's own questions or Boardworks activities. Exampro user guide PowerPoint. S-cool, the revision website – Work and Energy. specification content What most students should be able to do
The animation below shows heat transfer by convection in a kettle. The water molecules at the bottom of the kettle gain heat energy from the flame and vibrate faster and move further apart. Their density decreases and the hotter particle rise to the top of the kettle. The colder less dense molecules move into replace the hotter particles.
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Efficiency 172, 174 13-17 Q34-36 1.2.1-1.2.2 BBC Bitesize – Efficiency Pass My Exams – Energy Transfer Diagrams and Efficiency National and global energy resources 173-7, 175-9 18-25 Q37-39 1.3 YouTube: Energy Resources S-cool, the revision website – Non-renewable Energy Sources Standard Circuit diagram symbols 3 Page 161 Q1 -17
Energy Transfer Diagrams and Efficiency - Pass My Exams: GSCE Physics. [online] Available at: < …
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Ask your teachers or find out on the website of each of your GCSEs Exam boards. Common ones are: AQA, Edexcel, OCR and WJEC. The facts you need to know are often dependent on which exam board you do, so it's important to know your board so that you know what to revise. 2. Make friends with your teachers.
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An energy transfer diagram for a power station along with a Sankey diagram is shown below: Efficiency The efficiency of a device is calculated using the following formula: …
Two examples are the transfer diagram and the Sankey diagram. Transfer diagrams In transfer diagrams the boxes show the energy stores and the arrows show the energy …
The efficiency of a device refers to the amount of energy/power used. When energy is usefully transferred the greater the proportion of energy is usefully transferred and this is more cost effective. if you replaced your old TV with a new one it will be more efficient even though it would cost more.
passmyexams.co.uk Energy Transfer Diagrams and Efficiency - Pass My Exams: GSCE Physics Comprehensive revision notes for GCSE exams for Physics, Chemistry, Biology Katie Kokiko Guy 503followers More information E.4 energy transfer in power stations Find this Pin and more on Schoolby Katie Kokiko Guy. Pass My Exams Heat Energy …
Mass transfer: molecular diffusion and Flick's law, conduction and convective mass transfer, permeability through single and multilayer films. Mechanical operations: size reduction of …
Energy Transformation Diagrams. Efficiency. Energy Sources. GCSE Physics Notes and Past Papers | Digestible Notes FREE Physics revision notes created by the expert teachers at SAVE MY EXAMS for the AQA GCSE Physics (9-1) exam. ... Energy Transfer. Equations. Forces and Motion. How Science Works. ... Pass My Exams: Revision notes …
In transfer diagrams the boxes show the energy stores and the arrows show the energy transfers. For example, a transfer diagram for a child at the top of a slide may be:
The efficiency of a system is a measure of how well energy is transferred in a system. Efficiency is defined as: The ratio of the useful energy transferred by the device to the …
Calculations to include kinetic energy, elastic potential energy and gravitational potential energy. Equations for kinetic energy and gravitational potential energy should be …
Energy transfers can be represented by diagrams These are sometimes called Sankey diagrams; The arrow in a Sankey diagram represents the transfer of energy: The end of the arrow pointing to the right represents the energy that ends up in the desired store (the useful energy output); The end that points down represents the wasted energy The width …
Electrical Energy = 220 x 3 x 5 = 3300 Joules Not all the electrical energy is transferred to gravitational potential energy but is loss as heat via friction to the moving parts of the motor and conveyor and also as noise energy as the moving parts contact each other. Next: Energy Transfer Diagrams, Efficiency
Improving Efficiency (HT only) The efficiency of a device can be improved by reducing the amount of wasted energy transferred. Machines waste energy due to: Friction between their moving parts. Air resistance. Electrical resistance. Sound.
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The diagram represents the energy transfers in the motor. How much energy is wasted? Step 1: State the conservation of energy Energy cannot be created or destroyed, it can only be moved from one store to another This means that: Total energy in = Useful energy out + Wasted energy Step 2: Rearrange the equation for the wasted energy
Save My Exams! – The Home of Revision For more awesome GCSE and A level resources, visit us at Page 6 (Total 7 marks) Q3.The diagram shows a car radiator. The radiator is part of the engine cooling system. Liquid coolant, heated by the car engine, enters the radiator. As the coolant passes
Energy Transfer. Energy Transformation Diagrams. Efficiency. Energy Sources. GCSE Physics Notes and Past Papers | Digestible Notes FREE Physics revision notes created by the expert teachers at SAVE MY EXAMS for the AQA GCSE Physics (9-1) exam. AQA GCSE Physics Revision Notes | Save My Exams FREE Edexcel GCSE (9-1) Physics …
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