WAEC Physics 2017 Theory — Question 12

Question 12 of 33 from the West African Examinations Council (WAEC) Physics 2017 Theory paper, with the correct answer and a full explanation.

8(d) State two practical examples of mechanical resonance

Model answer

(i) A pendulum forcing another pendulum to oscillate (ii) Glass cups getting broken due to high pitch sounds (iii) Bridges collapsing due to soldiers marching in step with the bridge's natural frequency (any two).

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