11: Exam Questions Flashcards
1
Q
There is mass suspended by a spring from a vibrating support. What condition is necessary for it to go into resonance?
A
frequency of support equals/matches natural frequency of mass-spring system
2
Q
Explain one effect of damping when the system (mass suspended by a spring from a vibrating support) goes into resonance.
A
reduces amplitude of oscillations; by transferring energy from it / applying friction;
3
Q
Define Simple Harmonic motion (2)
A
Acceleration ∝ displacement [from a fixed point] (1) and directed
towards a fixed point (1)
