The tutor's blog

News and insights
An easy way to lose marks

An easy way to lose marks

This is a classic. Energy = Power x Time So given a question like "How much energy is converted if a 100W light bulb is on for 1 hour?" it's obvious that you multiply 100W by 1 hour and get the answer 100 Joules. WRONG!! The formula only works if ALL the bits of it...

read more
Physics and beauty

Physics and beauty

“Poets say science takes away from the beauty of the stars - mere globs of gas atoms. I too can see the stars on a desert night, and feel them. But do I see less or more? The vastness of the heavens stretches my imagination - stuck on this carousel my little eye can...

read more
Circle theorems

Circle theorems

I just added a sheet of circle theorems. Unfortunately, you just have to learn these, but it's well worth it. You need to able to spot which theorem to use when you see a question. The best way to get better at this is practice. The more examples you do, the easier...

read more

Heavens above!

I was talking to a student the other day who wanted to know when the International Space Station would be visible in the sky. There's a great website called Heavens Above which you can use to find out predicted times at your location. I can highly recommend this site....

read more