SHM
- Created by: Emilyburkee
- Created on: 03-01-21 16:23
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- SHM
- conditions
- acceleration in the opposite direction
- force is proportional to its displacement
- oscillates either side of equilibrium
- restoring force acts towards the equilibrium point
- energy is transferred between different forms
- in a veritcal mass-spring system
- max displacement= max ke and 0 pe
- 0 displacement= max Pe and 0 ke
- horizontal mass-spring system
- 0 displacement- max elastic potentail -max displacement = max= max ke
- in a veritcal mass-spring system
- Damping
- when the energy in an oscillating sytsem is lost to its surroundings
- this leads to a reduction in amplitude
- critical
- amplitude is reduced to 0 in the shortest posible time
- heavy
- amplitude is reduced without any more oscillations
- light
- amplitude gradually decreases with each oscillations
- when the energy in an oscillating sytsem is lost to its surroundings
- forced oscillations
- are when a system experiences an external driving force which causes it to oscillate
- free oscillations
- when no external forces are acting on the system
- oscillates at natural frequency
- when no external forces are acting on the system
- resonnace
- when the driving F = natural F
- amplitude is significantly increased due to gaining more e from the driving force
- has uses but can also cause structural damages
- conditions
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