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Questions and Answers
Which type of motion is often called free oscillation?
Which type of motion is often called free oscillation?
- Simple Harmonic Motion (correct)
- Damped Oscillation
- Steady Decrease Motion
- Dying Down Motion
Under what condition does the free oscillation sustain?
Under what condition does the free oscillation sustain?
- When the total energy of the system is constant
- In most real situations
- When the damping factor is zero
- In the absence of decaying forces (correct)
What effect can the presence of damping force have on the system?
What effect can the presence of damping force have on the system?
- Cause the motion to cease eventually (correct)
- Increase the total energy
- Change the natural frequency of vibration
- Enhance the oscillatory character of the system
What is the relation between the natural frequency of vibration and the damping factor?
What is the relation between the natural frequency of vibration and the damping factor?
What is the force acting on a particle in Simple Harmonic Motion proportional to?
What is the force acting on a particle in Simple Harmonic Motion proportional to?
Which type of motion is often called free oscillation?
Which type of motion is often called free oscillation?
What is the effect of damping force on the system?
What is the effect of damping force on the system?
What is the relation between the natural frequency of vibration and the damping factor?
What is the relation between the natural frequency of vibration and the damping factor?
What does the force acting on a particle in Simple Harmonic Motion depend on?
What does the force acting on a particle in Simple Harmonic Motion depend on?
What happens to the total energy of the system in damped motion?
What happens to the total energy of the system in damped motion?
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Study Notes
Free Oscillation and Simple Harmonic Motion
- Free oscillation is another term for undamped simple harmonic motion.
- Free oscillation sustains when there is no external damping force acting on the system.
- The presence of damping force can reduce the amplitude of oscillation over time, eventually bringing the system to rest.
- The natural frequency of vibration is inversely proportional to the damping factor, meaning that as the damping factor increases, the natural frequency decreases.
- The force acting on a particle in Simple Harmonic Motion is proportional to the displacement of the particle from its equilibrium position.
- Damping force has a dissipative effect on the system, reducing the amplitude of oscillation over time.
- The total energy of the system in damped motion decreases over time, eventually becoming zero.
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