11- Modelling oscillations Flashcards
1
Q
Equation for SHM if oscillator starts at max displacement?
A
x=Acoswt
2
Q
Equation for shm?
A
a =-w^2x
3
Q
What is free oscillation?
A
An oscillation due to the action of a restoring force, without any damping or driving force.
4
Q
What is natural frequency?
A
The frequency of a free oscillator.
5
Q
What is forced oscillation?
A
An oscillation driven by the action of a periodic driving force.
6
Q
Define resonance.
A
The effect produced when a driving frequency, matches the natural frequency of a system, resulting in large amplitude oscillations.
7
Q
Define damping.
A
The action of forces such as friction or air resistance to reduce the amplitude of an oscillator.
