# Oscillations

#### Chapter 8 - Oscillations

We study oscillating objects in the GCE A Levels, but only the very specific type of oscillation known as simple harmonic motion. This video explains what both of these are and the difference between them.

In the GCE A Levels, we are required to perform quantitative calculations on objects in simple harmonic motion (SHM), and therefore this video shows the derivation of this formula. This video also discusses the concept of phase in an SHM.

This video will run through the various terms used to describe an object in simple harmonic motion (SHM). In the GCE A Levels, these include the terms amplitude, period, frequency, phase and angular frequency. There is also a short discussion on the difference between angular velocity and angular frequency.
In the GCE A Levels, we must understand the relationship between an object’s velocity and its displacement from equilibrium if it is in simple harmonic motion (SHM). We will derive the formulae and plot the graph describing this relationship.
In the GCE A Levels, we must understand the relationship between an object’s acceleration and its displacement from equilibrium if it is in simple harmonic motion (SHM). We will derive the formulae and plot the graph describing this relationship.
In the GCE A Levels, we may be asked to study the forces on an object in simple harmonic motion (SHM). This video will show how to do such an analysis, and also derive some interesting formulae related to spring systems which are in SHM.
In the GCE A Levels, we may be asked to study the energy of an object in simple harmonic motion (SHM). This video will discuss this, derive the expression for the total energy of an object in SHM, and also plot some important graphs relating energy to time, and energy to displacement from equilibrium.
A damped oscillation is one which loses energy over time. In the GCE A Levels, we need to describe three types of damping, namely light damping, critical damping and heavy damping. This video will discuss these forms of damping, including their graphs, and some examples of them.
This video will introduce the terms forced oscillation, periodic external force and natural frequency. These concepts are required to understand the concept of resonance which is required in the GCE A Levels. We will also look at the effects of damping on the frequency response of a system.