Simple Harmonic Motion and Systems Flashcards
1
Q
Simple Harmonic Motion
A
Objects acceleration directly proportional to displacement and is in the opposite direction.
2
Q
Maximum Speed
A
w A
3
Q
Maximum Acceleration
A
w A^2
4
Q
Simple Harmonic Systems
A
They oscillate with SHM.
5
Q
Examples of SHS
A
Simple Pendulum
Mass-Spring System
6
Q
For SHMS
A
- Kinetic energy transferred to potential and back as it oscillates.
- At amplitude of oscillations, system has maximum amount of potential energy. as it moves to equi position.
- as it moves to equi position, PE converted to kinetic (max at centre of oscillation).
- As system moves away from equi, KE transferred to PE until it is a maximum, then repeats again for a full oscillation.
- Total Energy remains constant.
7
Q
Damping
A
Energy in oscillating system is lost to environment, reducing amplitude of oscillations.
8
Q
Light damping
A
Amplitude gradually decreases by a small amount each oscillation.
9
Q
Critical Damping
A
Reduces amplitude to 0 in shortest possible time without oscillating.
10
Q
Heavy Damping
A
Amplitude reduces slower than critical but without any additional oscillations.
