GCSE Physics - Conservation of Energy #4

This video covers:
- Conservation of energy principle
- Open vs closes systems
- Examples of how energy is transferred

General info:
- Suitable for all GCSE and IGCSE courses

Exam board specific info:
AQA - Everything is relevant to your course!
IGCSE Edexcel - Everything is relevant to your course!
Edexcel - Everything is relevant to your course!
OCR 21st Century - Everything is relevant to your course!
OCR Gateway - Everything is relevant to your course!

[Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[yandehjagne]

the one dislike is my crazy physics teacher who is jealous of you because this is the only way i learn anything

[Demi]

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[mahsofabishweenie]

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[abdurrahmanbinomer]

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[kinzaraza]

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Update: Just came back after my exam. It went extremely well. I'll post a second update when the result comes.

[evanmainali]

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[Baqir_B]

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[philipbrady]

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[velocityop]

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[Games_wizard]

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[mae]

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[Ryan-science-history]

These videos are really cllose to my book's syllabus and content, the videos are great! :)

[joeknowscryptos]

Ok but you never go to the third step in any of these. If energy never goes away I disagree. You charge the phone the battery then uses energy to light screen, make sound, throws off heat. What then does the sound energy convert to? How about the lighted screen? Eventually the battery runs out of energy can that sound or light be recouped?

[MuhammadAnas_Official]

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[darren]

Quick question regarding the closed system. Say a mobile 'phone is inside a sealed jar, which is sat on top of a wireless charger. If the 'phone started charging, would this count as energy being transferred into the closed system? Or would it not charge?

[shirelchandra]

Hii! Your videos are super helpful, I was wondering if you had a video on the different types of energy (mechanical, light, sound, thermal, etc). If not, do you think you'd be able to make one? :)