This video covers
- The difference between convex and concave lenses
- What 'principal focus' and 'focal length' are
- The difference between real and virtual images
Exam board specific info:
AQA - Separate science only
IGCSE Edexcel - Not in your course
Edexcel - Separate science only
OCR 21st Century - Separate science only
OCR Gateway - Separate science only
Maths Playlist:
https://www.youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh
GCSE Chemistry playlist:
https://www.youtube.com/watch?v=fN8kH9Vvqo0&list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W
GCSE Biology Playlist:
https://www.youtube.com/watch?v=--dIBinUdeU&list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g
GCSE Physics Playlist:
https://www.youtube.com/watch?v=aHVJfRxeAxo&list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7