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Acceleration is defined as: The rate of change of velocity . Oct 14, 2024 · Assuming the volume of gas is kept at constant pressure, this means the force F exerted by the gas on the piston is equal to:; Where A = cross-sectional area of the cylinder (m 2) Dec 24, 2024 · Revision notes on Principle of Moments for the Cambridge (CIE) A Level Physics syllabus, written by the Physics experts at Save My Exams. The bob is a weight, generally spherical and considered a point mass. The bob moves from side to side Dec 17, 2024 · To find uncertainties in different situations: The uncertainty in a reading: ± half the smallest division The uncertainty in a measurement: at least ±1 smallest division The uncertainty in repeated data: half the range i. Dec 24, 2024 · Revision notes on Gravitational Fields for the Cambridge (CIE) A Level Physics syllabus, written by the Physics experts at Save My Exams. 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Revision notes for the Edexcel AS Physics syllabus, written by the Physics experts at Save My Exams. . She decided that she wanted to inspire other young people, so moved to Bristol to complete a PGCE in Secondary Science. Nov 2, 2024 · A skydiver uses air resistance to reduce their speed so that they can land safely. Motion, Forces & Energy Physical Quantities & Measurement Techniques Measurement Dec 16, 2024 · Internal Energy. ± ½ (largest - smallest value) Nov 2, 2024 · The force of Trolley A on Trolley B is equal and opposite to the force of Trolley B on Trolley A. The internal energy of a substance is defined as: The sum of the total kinetic energy and the total intermolecular potential energy of the particles within the substance Jan 29, 2024 · Density is related to mass and volume by the following equation: Where: ρ = density (kg/m 3) m = mass (kg); V = volume (m 3) Gases, for examples, are less dense than solids because the molecules are more spread out (same mass, over a larger volume) Revision notes for the Edexcel A Level Physics syllabus, written by the Physics experts at Save My Exams. Save My Exams is the stress-free path to helping students study effectively and get higher grades than they ever thought possible. 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