Summary notes, revision videos and past exam questions by topic for AQA Physics GCSE Topic 5 - Forces 5.6 Forces and Motion; 5.7 Momentum; Questions by Topic 2018-2021 papers. 4.3.5 Drag Forces. Root-mean-square (r.m.s) values of current, or voltage, are a useful way of comparing a.c current, or voltage, to its equivalent direct current, or voltage; The r.m.s values represent the d.c current, or voltage, values that will produce the same heating effect, or power dissipation, as the alternating current, or voltage; The r.m.s value of an alternating current is defined as: Say goodbye to ads. For rectifications reach out to the subject lead. ginuwine singer pony cook county election judge online training reduces the deceleration during braking, so the braking distance is increased. The resultant force which causes this acceleration is the centripetal force. 4.3.6 Terminal Velocity. So any force that causes a body to move is an unbalanced force. Find A-Level Physics Revision Resources + Edexcel, AQA & OCR specific Physics Revision Resources for A-Level Students. An anti-lock braking system (ABS) helps to keep the stopping times to a minimum. 21.1.2 Root-Mean-Square Current & Voltage, 21.1 Properties and Uses of Alternating Current, 1.1.3 Homogeneity of Physical Equations & Powers of Ten, 2.1.1 Displacement, Velocity & Acceleration, 2.1.4 Gradient of a Displacement-Time Graph, 2.1.7 Solving Problems with Kinematic Equations, 2.1.8 Acceleration of Free Fall Experiment, 4.1 Forces: Turning Effects & Equilibrium, 5.1 Energy: Conservation, Work, Power & Efficiency, 5.1.2 The Principle of Conservation of Energy, 6.2 Deformation: Elastic & Plastic Behaviour, 7.2 Transverse Waves: EM Spectrum & Polarisation, 10.1 DC: Practical Circuits & Kirchhoff's Laws, 10.1.6 Solving Problems with Kirchhoff's Laws, 12.1 Kinematics of Uniform Circular Motion, 12.2.2 Calculating Centripetal Acceleration, 13.1.2 Gravitational Force Between Point Masses, 13.1.3 Circular Orbits in Gravitational Fields, 15.2.2 Derivation of the Kinetic Theory of Gases Equation, 15.2.3 Average Kinetic Energy of a Molecule, 17.1.3 Calculating Acceleration & Displacement in SHM, 18.1.1 Electric Fields & Forces on Charges, 18.1.5 Electric Force Between Two Point Charges, 19.1.4 Area Under a Potential-Charge Graph, 20.1.2 Force on a Current-Carrying Conductor, 20.1.8 Motion of a Charged Particle in a Magnetic Field, 20.1.10 Magnetic Fields in Wires, Coils & Solenoids, 20.1.11 Forces between Current-Carrying Conductors, 20.2.3 Principles of Electromagnetic Induction, 23.1 Mass Defect & Nuclear Binding Energy, 23.1.5 Calculating Energy Released in Nuclear Reactions, 23.2.1 The Random Nature of Radioactive Decay, 24.1.5 Attenuation of Ultrasound in Matter, 24.2.3 Detecting Gamma-Rays from PET Scanning, 25.1.2 Standard Candles & Stellar Distances, 25.1.4 Stefan-Boltzmann Law & Stellar Radii, 25.2.3 Hubble's Law & the Big Bang Theory, Root-mean-square (r.m.s) values of current, or voltage, are a useful way of, The r.m.s values represent the d.c current, or voltage, values that will produce the same. 9.10, skater A cannot push skater B without skater B pushing skater A. Grade 9-1 GCSE Physics worksheets, past papers and practice papers for Edexcel, AQA and OCR.GCSE. Simply browse all the topics and study our high quality material. 4.3.6 Terminal Velocity. Physics Paper 2 Video Tutorials. Units 1.1 Movement and Position 1.2 - 1.8 Forces, movement, shape & momentum 1.9+ Best 3 Revision Videos for Kinetic Energy . Weight is a force and is measured innewtons. IGCSE Physics Revision Notes from OxNotes, Free IGCSE & GCSE Revision resource with a simple & helpful layout. Descriptions of what is pushing/pulling on what are important in OCR A. The distance that a vehicle travels between the driver noticing a hazard and when the vehicle stops is called the, stopping distance = thinking distance + braking distance. 25.3.6 Charge to Mass Ratio of Electrons. GCSE. 1.1.2 Scalars & Vectors. If P 1 is the lung pressure, P 0 is the atmospheric pressure, then if the difference is h then lung pressure can calculated as follows.. P 1 = P 0 + hg.. Therefore, the intensity is 0.018 I at the fat-muscle boundary, and as the ultrasound moves through the fat, it gets attenuated and the new intensity at the surface S is now 0.012 I, Incident intensity, equal to the intensity of the reflected pulse, I0 = 0.018 I ex, Substitute in values for intensity and simplify, Rearrange and take the natural log of both sides. FREE Physics revision notes on Physical Quantities. These results are shown in the tables below.Calculate the mean wavelength of the laser light and compare it with the accepted value of 635 nm. 20.1.8 Motion of a Charged Particle in a Magnetic Field. She decided that she wanted to inspire other young people, so moved to Bristol to complete a PGCE in Secondary Science. Covering Edexcel, AQA, OCR and more! If the radius of the circle decreases. The r.m.s value of an alternating current is defined as: The r.m.s value of an alternating voltage is defined as: The alternating current equation is in the form: Comparing this to I = 410 sin(100t) means the peak current is. FREE Physics revision notes on Units & Prefixes. Forces are balanced when the resultant force is zero. These stopping distances are taken into account when road speed limits are set. She particularly loves creating fun and absorbing materials to help students achieve their exam potential. Forces and Motion. Resources include A-Level Physics Revision Notes, A-Level Physics Help Forums (General Revision + Edexcel, AQA, OCR & WJEC), Exam Specs, Exam Papers, Physics Revision Guides (A Level) & More. 1.1 Physical Quantities & Measurement Techniques 1.2 Motion 1.3 Mass, Weight & Density 1.4 Effects of Forces 1.5 Moments 1.6 Momentum 1.7 Energy, Work & Power 1.8 Energy Sources 1.9 Pressure. GCSE Science Revision - Calculating Acceleration. Share. You would slip back and never move forward. The Second Law of Motion states that if an unbalanced force acts on a body, that body will experience acceleration ( or deceleration), that is, a change of speed. Module 2: Foundations of Physics. The thickness x of the layer of fat on an animal, as shown in the diagram, is to be investigated using ultrasound.The intensity of the parallel ultrasound beam entering the surface S of the layer of fat is I. A few examples of this motion are a bouncing ball, a rocking chair, a swing in motion, a water wave, a vibrating tuning fork, etc. Imagine walking, or cycling, on a frictionless icy surface. How quickly an object is moving Velocity -The speed in a given direction. A man blows into one end of a U-tube containing water until the levels differ by 40.0 cm. 4.3.5 Drag Forces. On diagrams they are represented by arrows,in the direction the force acts. A resultant force on an object causes it to accelerate. Quick View. When speed doubles, thinking distance doubles, and braking distance is four times as far. Forces and Motion. FREE Physics revision notes on Energy Stores & Transfers. Air resistance (or drag), is a resistive force that acts against objects thatare moving through the air. Assess the percentage uncertainty in this result. Physics (Single Science) Physics is the study of energy, forces, mechanics, waves, and the structure of atoms and the physical universe. They should also reduce speed in bad weather to allow for the increased braking distance. Electricity. One grating used was marked 100 slits / mm, the other was marked 300 slits / mm. This arises because, on a microscopic scale, thesurfaces are not completely smooth and the high points become stucktogether. Summary notes, revision videos and past exam questions by topic for Edexcel GCSE Physics Topic 2 - Motions and Forces Waves. P 1 = P 2 + hg.. If the string breaks there is no longer a resultant force acting on the ball, so it will continue its motion in a straight line at constant speed. Physics (Single Science) Physics is the study of energy, forces, mechanics, waves, and the structure of atoms and the physical universe. Centripetal Force. Forces & Motion. The International Space Stations velocity is always changing - it whizzes around the Earth at a constant speed of about 7660 m/s but is always changing direction. The changing velocity in time means the object is accelerating all the time. AS Physics Equilibrium and Moments . It can be used for pushing. AQA GCSE Physics: Revision Notes Home / GCSE / Physics / AQA / Revision Notes Concise resources for the GCSE AQA Physics course. FREE Physics revision notes on Measurement. Motion Graphs -Distance-time and velocity-time graphs . Motion, Forces & Energy. Module 3: Forces and Motion. 0.0 / 5. When you walk, your foot pushes back on the ground and the ground pushes forward on your foot. Designed by the teachers at SAVE MY EXAMS for the CIE A Level Physics (9702) syllabus. Concise resources for the IGCSE CIE Physics course. Drivers should not drive closer than the thinking distance to the car in front, allowing them time to react. Therefore its velocity is continuously changing as velocity is speed in a particular direction. She particularly loves creating fun and absorbing materials to help students achieve their exam potential. KS3 Maths KS3 English. Do not confuse theseforces, which act ondifferent objects, withbalanced forces,which act on thesame object. Motion and associated forces (including Newton's Laws of Motion) 1. Acceleration -How quickly an objects velocity is changing . 20.1.9 Velocity Selection. 2.2.3 Core Practical: Investigating Force & Acceleration, 2.4.3 Factors Affecting Stopping Distance, 4.1.11 Core Practical: Investigating Wave Properties, 5.2.1 Properties of Electromagnetic Waves, 5.3.3 Core Practical: Investigating Thermal Radiation, 6.4.5 Advantages & Disadvantages of Nuclear Power, 7.1 The Solar System & Lifecycles of Stars, 10.1 Current, Potential Difference & Resistance, 10.2 Components in Series & Parallel Circuits, 10.2.2 Comparing Series & Parallel Circuits, 10.2.5 Core Practical: Investigating & Testing Circuits, 10.3.3 Uses & Dangers of Electric Heating, 11.1.3 Uses & Dangers of Static Electricity, 13.1.3 Applications of the Generator Effect, 14.1.3 Core Practical: Determining Density, 14.1.10 Core Practical: Investigating Specific Heat Capacity, 15.1.4 Core Practical: Investigating Force & Extension, 15.2 Pressure & Pressure Differences in Fluids, When an object travels along a circular path, its velocity is always changing, This means that an object moving in circular motion travels at a. 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