9/16/2023 0 Comments Gcse physics revision![]() ![]() These different safety features decrease the rate of change of momentum, which decreases the force of the collision on any people within the car. Crumple zones refer to the areas of a car that are designed to deform or crumple on impact. Car safety features such as seatbelts, airbags and crumple zones all work to change the shape of the car, which increases the time taken for the collision. The force of the collision is equal to the rate of change of momentum. Car safety featuresÄuring a collision there is a change in momentum. The Physics GCSE course covers a variety of topics, focusing on energy, electricity, particle models, atomic structure, forces, waves, magnetism and. Enroll in The Digital Academys tailored revision courses for optimal. Learn about and revise nuclear fission, nuclear fusion and how energy is released from these processes with GCSE Bitesize Physics. Momentum is a vector and they are in opposite directions so add up to zero. Ace your GCSE Physics revision with our essential last-minute tips and tricks. These extra bits of momentum add nothing to the whole system. So in a collision the two objects each gain the same momentum but in opposite directions. The change in momentum is given by the force multiplied by the time it acts for. ![]() ![]() Scalar and vector quantities are treated differently in calculations. The rate at which energy is transferred is called power and the amount of energy that is usefully transferred is called efficiency. The physical quantities they measure fall into two categories: scalars and vectors. This means that the objects will each have the same size force acting for the same amount of time. Energy is a key principle in physics, as it allows work to be done. When objects collide, they will exert equal and opposite forces on each other all the time they are in contact. The equation shows that the force involved is equal to the rate of change of momentum. time taken ( t ) is measured in seconds (s).change in momentum ( mv - mu ) is measured in kilogram metres per second (kg m/s).You can combine two equations to show how to calculate the force involved when a change in momentum happens: Struggling with Physics Find a one-to-one tutor on our new Tuition Platform. Calculating the rate of change of momentum Physics GCSE Revision Guides are colourful and engaging learning aids that provide students with all the key content they need to excel in GCSE Physics. Physics Revision Approaching end of year exams Want to recap everything you learnt in Year 12 Check out our online May Half-term AS-level Physics Recap Course for AQA and OCR (A) on 30-31st May. [et_pb_row column_structure="1_3,1_3,1_3" _builder_version="4.17.When a resultant force acts on an object that is moving, or able to move, there is a change in momentum. From energy to electricity and forces to fission, delve into this hand-picked collection of GCSE and IGCSE physics revision resources for your secondary. The GCSE Physics revision section of Revision Science covering Electricity, Energy Resources and Transfer, Forces and Motion, Radioactivity, The Earth and Beyond and Waves.Click on the resources below. ![]()
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