Resonance Resonance and Damping Oscillations A Level Physics

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=QzN1xXFs-Lk

Today we talk about resonance: it is when an oscillating system is forced to vibrate at the same frequency as its natural frequency, making its amplitude much higher to its maximum amplitude because of it. • The meaning of driver frequency or forcing frequency, and natural frequency can be found in this vieo: • • Free and Forced Oscillations, Frequen... • We then study the graph of amplitude against driving frequency. The point of highest amplitude is when the driving frequency is equal to the natural frequency. • Then, we also talk about damping with resonance, to decrease it. We cover the amplitude-driving frequency graphs of no damping, light damping and heavy damping oscillations. Critical damping, over damping and under damping is also covered. • Finally, the uses of resonance are explained: in musical instruments, microwave cooking allowing the water molecules to vibrate at a much higher amplitude, MRI(magnetic resonance imaging) and radio tuning circuiting. • Check out my previous video on simple harmonic motion: • • Simple Harmonic Motion: Requirements,... • And my video on Energy of Oscillations: • • Energy in Simple Harmonic Motion (s.h... • And finally, my video on damping. • • Damping, Exponential Decay of Oscilla... • Thank you for watching this video, and good luck in your studies!

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