In 1831, soldiers marched across the Broughton Bridge in England in "lock step"-that is, marching in time together. As they marched, the bridge began to bounce in time with their footsteps; the amplitude of this bouncing became larger and larger until the bridge suddenly collapsed. Part A Explain why the lock step of the soldiers caused this collapse and why afterward soldiers were ordered to "break step," or march at their own individual rates, as they crossed bridges. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. ResetHelp Every object has natural frequencies of oscillation with which they will respond when deflected from equilibrium. The marching soldiers appear to have been marching at a pace such that their stomping boots drove the oscillation of the bridge at . Pushing an oscillating system at the same rate as it responds is like pushing a child on a swing at just the right time to drive the oscillations . If the soldiers break step, the total driving force and will not drive the bridge into large-amplitude oscillations. Request Answer Provide Feedback
Solution) The bridge collapse due to Resonance .
Resonance is a phenomenon when it's frequency of oscillation matches with it's natural frequency of vibration there is an increase in amplitude .
When soldiers march then bridge vibrates with increased amplitude due to Resonance and bridge collapses .
Every object has natural frequencies of oscillation with which they will respond when deflected from equilibrium .
The above statement is correct .
In 1831, soldiers marched across the Broughton Bridge in England in "lock step"-that is, marching in...
In 1831, soldiers marched across the Broughton Bridge in England in “lock step”—that is, marching in time together. As they marched, the bridge began to bounce in time with their footsteps; the amplitude of this bouncing became larger and larger until the bridge suddenly collapsed. Explain why the lock step of the soldiers caused this collapse and why afterward soldiers were ordered to “break step,” or march at their own individual rates, as they crossed bridges.