-
Old Educational VHS Cassettes
My Physics department at school has a collection of old VHS cassettes, some dating back to the 1980s. I don’t want them to be lost forever, so I’ve started the process of digitising them. I found an old VCR in a cupboard in the geography/geology department, got a SCART to HDMI adapter and a videoContinue…

-
2025 Christmas Special
Don’t forget to watch the 2025 Christmas Special! Link in my latest blog post.

-
-
“Physics is JUST applied mathematics”
“Physics is just applied mathematics”: a statement often given by non-physicists in an attempt to assuage their own feelings of inadequacy. In this blog post, I explore the assertion that mathematics was invented by physicists.

-
Is there a mistake on this GCSE Astronomy mark scheme?
In yesterday’s tuition sessions I encountered an issue, where I could not justify what the mark scheme said about a question. After some more thought, I believe there are mistakes on the mark scheme for this question. Watch the video below to see my thoughts. Am I wrong? Please do let me know if I’mContinue…

-
Stop using AI for revision!
Is the use of generative AI useful or harmful for young people? Is the use of generative AI for studying beneficial or does it lead to a deficiency of knowledge? I ramble on about it in this blog post.

-
Teaching Energy to High School Students
The target audience of this post is teachers and parents who are supporting children with their physics education. Young people are welcome to read it (they may find it interesting) but it could cause extra confusion for all but the most capable students. Brace yourself, this is a long post! (8325 words, estimated 44 minutesContinue…

-
New academic year!
It’s been a frantically busy autumn half-term to start the new academic year 2025-2026! I’m sorry I’ve not had a chance to write any updates or blog posts. As I write this, I’m in Geneva on a school trip. I cannot keep track of how many times I’ve been on this trip now; somewhere betweenContinue…

-
-
Everyone has to get marks somewhere
How do Examination Boards ensure there is a spread of marks? Well, I have an idea…

Physics with Keith
Interactive online physics tuition for GCSE/IGCSE and A-Level students (and equivalent) by an experienced and qualified physics teacher.
Social Media
Ⓒ 2026 by Keith Dalby


