I just found this set of video’s on YouTube. The channel seems to cover both Edexcel and Cambridge IGCSE physics. Libby too a loo at he waves video today and said it really helped. Often it’s a case of having something explained by someone else who inevitably does it in a different manner or uses different phrases. This chaps bio says he is a Physics Teacher at Sherborne School, Dorset, UK. Anyway, hope it helps with the revision, teaching etc.