Free & Forced Oscillations Free Oscillations Free oscillations occur when there is no transfer of energy to or from the surroundings This happens when an oscillating system is displaced and the...
Damped & Undamped Oscillating Systems In practice, all oscillators eventually stop oscillating Their amplitudes decrease rapidly, or gradually This happens due to resistive forces, such ...
Core Practical 16: Investigating Resonance Aim of the Experiment Determine the value of an unknown mass by a graphical method by using the resonant frequencies of the oscillation of known masses Va...
Resonance The frequency of forced oscillations is referred to as the driving frequency, f, or the frequency of the applied force All oscillating systems have a natural frequency, f0, this is define...
Velocity-time graph for an oscillator The velocity of an object in simple harmonic motion can be represented by a graph of velocity against time Key features of the velocity-time graph: It is 90o o...
Displacement-Time graph for an oscillator The displacement of an object in simple harmonic motion can be represented by a graph of displacement against time All undamped SHM graphs are represented ...
Period of a simple pendulum A simple pendulum is: An object moving from side to side Attached to a fixed point above The time period of a simple pendulum can also be calculated using this equation:...
Equations for Simple Harmonic Motion Acceleration and SHM Acceleration a and displacement x can be represented by the defining equation of SHM: a ∝ −x The acceleration of an object oscillating in s...
Conditions for Simple Harmonic Motion Simple harmonic motion (SHM) is a specific type of oscillation An oscillation is said to be SHM when: The acceleration is proportional to the displacement The ...
