A2 Revision 2.0 / 5 based on 1 rating ? PhysicsMomentum and ImpulseA2/A-levelAQA Created by: Jonathan WorsleyCreated on: 26-12-12 16:36 Newton's first law If no force is acted upon an object then its velocity remains constant. 1 of 9 Newton's second law F=MA - A is directly proportional to force and is inversely proportional to M 2 of 9 Newton's third law Every action has an opposite and equal reaction 3 of 9 Define Impulse The change in momentum due to force 4 of 9 Equation for momentum mv 5 of 9 In circular motion, is kinetic energy constant? Yes 6 of 9 Define free oscillation Oscillation in air, same amplitude and no energy loss. This never happens 7 of 9 Define forced vibration When a system is forced to vibrate by a periodic external force, the frequency of this is called the driving frequency. 8 of 9 How is the damping force acting on a vibrating system related to the velocity? It is in the opposite direction. 9 of 9

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