Simple Harmonic and Circular Motion Flashcards
1
Q
Tan(theta) = …
A
v^2/rg.
2
Q
What are the conditions for simple harmonic motion?
A
The acceleration must be directly proportional and in the opposite direction to the displacement.
3
Q
Define free oscillations.
A
No energy is wasted to friction, air resistance etc.
4
Q
Define damping.
A
The gradual reduction in the amplitude of an oscillation due to energy being used to overcome external forces.
5
Q
What are free vibrations?
A
When a system oscillates by itself once a force has been applied.
6
Q
What are forced vibrations?
A
Oscillations caused by an external driving force.
7
Q
When does resonance occur?
A
When the driving frequency equals the natural frequency.
