Resonance and critical damping

[sadman]

Can anyone please explain me resonance and Critical damping
and the types of resonance............speciafically ovt 2010 41 question number 3(c)
Please please please
May Allah(swt) help all of you in your exams

 

[thunderingthunder]

Can anyone please explain me resonance and Critical damping
and the types of resonance............speciafically ovt 2010 41 question number 3(c)
Please please please
May Allah(swt) help all of you in your exams

Resonance occurs when an object is made to oscillate equal to its natural frequency.
Critical damping:The amplitude of the oscillations decreases at a very very fast rate
I don't think that types of resonance is included as the syllabus content says:'DESCRIBE PRACTICAL EXAMPLES OF RESONANCE' and 'SITUATIONS IN WHICH RESONANCE SHOULD BE AVOIDED AND SITUATION IN WHICH RESONANCE IS USEFUL'
For Q3(c):the amplitude decreases and the peak will be at 4.6 Hz.
Hope this helps