Chapter 7 Notes | Physics 1st Year
- Types of motion
- Simple harmonic motion
- Different terms connected with SHM
- SHM and uniform circular motion
- A horizontal mass spring system
- Simple pendulum
- Energy conservation in SHM
- Free and forced oscillations
- Damped oscillations
- Sharpness of resonance
- Oscillatory motion is to end and fro motion about a mean position.
- Periodic motion is the one that repeats itself after equal intervals of time.
- Restoring Force opposes the change in the shape or length of a body and is equal and opposite to applied force.
- A vibratory motion in which acceleration is directly proportional to displacement from mean position and is always directed toward the mean position is known as simple harmonic motion.
- The projection of a particle moving in circle executes SHM. its time period T is 2π/ω.
- Phase of vibration is the quantity which indicates the state of motion if a vibrating particle generally referred by the phase angle.
- In An Oscillating System P.E And K.E. interchange and total energy is conserved.
- A Body is said to be executing free oscillation it it vibrates with its own natural frequency without the interference of an external force.
- When a freely oscillating response of system is subjected to an external periodic force, then forced vibrations take place.
- Resonance is the specific response of a system to a periodic force acting with the natural vibrating period of the system.
- Damping is the process whereby energy is dissipated from oscillating system.