Circular motion & Oscillations Flashcards
1
Q
Radian
A
The angle subtended at the center of a circle when the arc is equal in length to the radius of the circle
2
Q
Angular velocity
A
Rate of angular rotation, units are rad s^-1
3
Q
Centripetal acceleration
A
Acceleration of an object moving with uniform circular motion.
a=v^2/r
4
Q
Angular frequency
A
w=2πf or w=2π/t
5
Q
Simple harmonic motion
A
Oscillation of a body in which its acceleration is directly proportional to its displacement from a fixed point and is always directed towards that fixed point.
6
Q
Damping
A
Force that reduces the amplitude of an oscillation with time
7
Q
Resonance
A
When the driving frequency is equal to the natural frequency, this causes the oscillator to oscillate at maximum amplitude.
