6.0 Further Mechanics And Thermal Physics Flashcards
(7 cards)
1
Q
Define free vibrations
A
Vibrations that occur naturally, after the initial displacement
2
Q
Define forced vibrations
A
Vibrations that occur due to a periodically applied force
3
Q
Define resonance
A
When the period of vibration matches that of the natural frequency of the material, causing a large spike in amplitude
4
Q
Define damping
A
The reduction of amplitude of oscillations as a result of energy dissipation due to a resistive force
5
Q
Define under damping
A
When the amplitude of a system decreases gradually, increasing the period slightly
6
Q
Define critical damping
A
When the system returns to equilibrium in the minimum possible amount of time
7
Q
Define over damping
A
When the system returns to equilibrium without oscillation, but in a longer amount of time than critical damping
