Whole of Energy | GCSE Physics Paper 1 | AQA Triple Science, Higher [vm4UqziGs38]
This is a full revision video for paper 1 AQA GCSE Physics Energy for Triple. *Paper 2 whole topic videos* available for members — click the *’Join’* button below the video or click the link: Note - any higher tier content in the video is highlighted. Foundation students should ignore anything labelled 'Higher' 00:00 Introduction 00:17 Energy stores and changes in systems - this includes the definition of 'system' in physics and gives all the energy stores you need to know and ways energy is transferred. 02:24 - Kinetic energy equation with and example question 03.47 Gravitational potential energy and the equation with 2 practice questions 05:46 - Elastic potential energy including the meaning of spring constant and the use of the equation with two practice questions. 08:01 Changes in energy stores - how energy is transferred when an object is thrown upwards and a 2 equation question to link kinetic energy and gravitational potential energy 10:45 Transfer of kinetic energy to thermal energy in a braking car 12:21 Energy changes in systems - definition and explanation of specific heat capacity 14:25 Required Practical 1 - Specific heat capacity - the method for this practical including sources of error. 18:44 Power and energy transfer in systems - the definition of the word 'power' and the two equations needed (all on the given equation sheet) and comparison of motors. 22:57 Reducing unwanted energy transfer - how energy is transferred as useful or 'wasted' when dissipated. How to reduce unwanted heat transfers including the meaning of thermal conductivity 27:12 Required practical - effectiveness of different materials as insulators including the effect of thickness and type of material on heat loss. 31:54 Efficiency - explanation of the term 'efficiency' and the use of the equation in two forms. 33:38 National and global energy resources - renewable and non-renewable energy sources and advantages and disadvantages of each. Visit the website for the the complete set of videos, plus exam questions and answers: TheScienceBreak.com Also, check out: Instagram: Facebook: Twitter: TheScienceBreak.com