Work Energy Power

Chapter 5 - Work Energy Power

In the GCE A Levels, we appreciate that energy and work are essentially the same quantity and both are measured in Joules, but there is a very nuanced difference in the two and this video will explore this.

We can calculate the work done by a force by taking the average magnitude of that force multiplied by the distance moved in the direction of that force. In the GCE A Levels, we will be required to consider situations where the force is directed in various directions, including opposite to the distance moved. This video will discuss these scenarios and how to tackle them.

In the GCE A Levels, we are required to understand how the expression for gravitational potential energy is derived from the concepts of work done. This video will discuss this derivation.

In the GCE A Levels, we are required to understand how the expression for kinetic energy is derived from the concepts of work done. This video will discuss this derivation.
In the GCE A Levels, we are required to understand how the expression for elastic potential energy is derived from the concepts of work done. This video will discuss this derivation.
One of the most important concepts in GCE A Level Physics is the Conservation of Energy. This video introduces this concept and also discusses a systematic way to view systems using the concept of Conservation of Energy.
Power is the rate at which work can be done. The concept of power in the GCE A Levels is a commonly tested one, and this video will discuss the basic ways to represent power.
In the GCE A Levels, we are required to understand the concept of efficiency. This video will discuss how we use efficiency to study various energy systems.