Unit 4 Definitions 3.0 / 5 based on 1 rating ? PhysicsCapacitorsCircular motionElectric fieldsElectromagnetic InductionForcesGravitational fieldsMagnetic fieldsMomentum and ImpulseSimple harmonic motionA2/A-levelAQA Created by: natfarmer97Created on: 06-05-15 11:34 Simple Harmonic Motion Oscillation where acceleration is directly proportional to the displacement and directly towards the equilibrium 1 of 18 Free Vibration Oscillations where no energy transfer takes place to or from the surroundings 2 of 18 Amplitude Maximum displacement 3 of 18 Perfect Transformer One hundred percent efficient 4 of 18 Geostationary satellite Orbit the Earth with a period of 24 hours 5 of 18 Efficiency of a transformer Ratio of power out to power in 6 of 18 Gravitational Field Strength Force per unit mass 7 of 18 Black Body A perfect absorber and emitter of electromagnetic radiation 8 of 18 Newton's 2nd Law Force equals the rate of change of momentum 9 of 18 Angular Velocity Angle an object rotates through per second 10 of 18 Coulomb's Law Force of attraction or repulsion between two point charges 11 of 18 Capacitance Charge stored per unit volt 12 of 18 Angle in radians Arc length divided by radians 13 of 18 1 Tesla Webber per square metre 14 of 18 Gravitational Potential Energy Work done to move an object to a position in a gravitational field from infinity 15 of 18 Centripetal Acceleration Rate of change of velocity of an object following a circular path 16 of 18 Impulse Change in momentum 17 of 18 Electric Potential Electric potential energy per unit charge 18 of 18
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