GCSE Physics - Conservation of Energy | Open & Closed Systems

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*** WHAT'S COVERED ***
1. The Principle of Conservation of Energy.
* This fundamental principle states that energy can be transferred, stored, or dissipated, but it can never be created or destroyed.
2. Energy Transfers.
* An example of energy transfers when charging and using a mobile phone.
* This includes the conversion from electrical energy to a chemical energy store, and then to light and sound energy.
3. Useful and Wasted Energy.
* The concept of useful energy transfers versus wasted (dissipated) energy.
* Wasted energy is often transferred as heat to the surroundings.
4. Open and Closed Systems.
* Definition of a system and its environment in physics.
* The difference between an open system, where energy and matter can be exchanged with the environment, and a closed system, where they cannot.
* In a closed system, the total energy remains constant.

*** CHAPTERS ***
0:00 Introduction
0:46 Energy Transfer Example: Charging a Phone
1:31 Useful vs Wasted Energy
1:59 Open and Closed Systems

*** PLAYLISTS ***









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