1. The problem statement, all variables and given/known data Calculate how much original energy the oscillator in will have left after three cycles. Using Q= (ω/Δω) I have calculated the Q factor to be 4 2. Relevant equations The answer can be obtained by using the equation Q=2π(E/ΔE) Where ΔE/E is the fractional energy loss per cycle of the oscillation 3. The attempt at a solution I have been advised that I do not need to work out the original energy, instead, work out what % or fraction of the original energy is left. I tried using Q/2π which gave me an answer of 0.64, however the question asks over 3 cycles. Didn't know what to do after that. Fairly sure Q/2π isn't right anyway! Any pointers would be much appreciated.