A series of free GCSE/IGCSE Physics Notes and Lessons.
Internal Energy
What is meant by internal energy?
What happens to internal energy during changes of state?
Internal Energy & Change of State
Internal energy is the total energy stores within a system. This is the total of the kinetic energy stores and potential energy stores of the particles within the system.
Describe the difference between these types of energy, and how energy is taken in or released when a substance changes state.
Internal Energy
What is meant by internal energy?
What happens to internal energy during changes of state?
Internal energy is the total energy stores within a system. This is the total of the kinetic energy stores and potential energy stores of the particles within the system.
Describe the difference between these types of energy, and how energy is taken in or released when a substance changes state.
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.