4.4 Simple Harmonic Motion Flashcards
1
Q
Simple harmonic motion
A
- a=-w2t
The acceleration is directly proportional to the displacement and is always directed towards the fixed position.
2
Q
Damping
A
Resistive force which opposes motion and so causes the amplitude decrease
3
Q
Resonance
A
A vibrating system (or external force) drives another, to oscillate with greater amplitude at specific frequencies
4
Q
Free vibrations
A
No energy is transferred to or from the system, thus amplitude remains fixed
5
Q
Forced Vibrations
A
Forced to oscillate at the frequency of an external oscillator ( giving it energy )
6
Q
Forced Vibrations
A
Forced to oscillate at the frequency of an external oscillator ( giving it energy )
7
Q
A
8
Q
A
