10 Oscillations Notes

1 - is useful and other circum stances in w hich resonance should be avoided . (I) show an appreciation that there are som e circum stances in w hich resonance and sharpness of the resonance . understand qualitatively the factors w hich determ ine the frequency response driving freq uency near to the natural freq uency of the system , a n d (k) describe graphically how the am plitude of a forced oscillation changes w ith ü) describe practica©¥ exam p©¥es of forced oscillations and resonance. dam ping in cases sucH as a car suspensión system . to the effects of the degree of dam ping and the im portance of critical describe practical exam ples of dam ped oscillations w ith particular reference harm onic m otion. (h) describe the interchange betw een kinetic and potential energy during sim ple R esonance O scillations, and F orced D am ped H M = ilergy in and acce©¥eration during sim ple harm onic m otion. (g) describe, w ith graphical il©¥ustrations, the changes in displacem ent, v e ©¥ocity F x 2 ) . (f) recognise and use v = y o c o s a t a n d v = ÞÍ (e) recognise and use x = x o s in a) t as a so©¥ution to the equation a = - ©¡ 2 x . harm onic m otion. «d) recal©¥ and use the equation a = - ©ª 2 x as the defining equation of sim ple period in term s of both frequency and angular frequency . frequency, a n gular frequency and phase difference and express the (c) show an understanding of and use the term s am plitude, period , m ethods. (b) investigate the m otion of an oscillator using experim ental and graphica©¥ (a) describe sim ple exam ples of free oscil©¥ations. C andidates should be able to nic S im ple I Learn O utcom es D am ped and forced oscillations : resonance E nergy in sim p©¥e harm onic m otion S im p©¥e harm onic m otion content c h a UİjįȘȘ \

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