Please consider supporting my work by buying me a coffee at www.buymeacoffee.com/francisjonesa Helps me buy bits and pieces to make these videos! Very many thanks, F-J
I always like this kind of practical approach to physics. Unlike the tests where I got asked if voids in semiconductors have mass, and to calculate it.
Agreed! It is good if you can actually test something out and get a feel for it like in my experiments. I set myself a challenge of doing an experiment or demo every single lesson. Got harder with time and pressure! Thanks for watching and taking the time to comment too!
6;10 Argh!!! I always insisted my students include the units - it's Physics not Maths. More than that, at A level and beyond I insisted on separating mantissa and exponenty bits, and the units, then dealing with each group separately. It provides a useful check.
Yes, you are absolutely right. There are at least two approaches and I think there is a time and a place for each. I always feel it provides some inner understanding if done well, for example Force x Velocity being in units of Power - not obvious a very first sight to a beginner! (BTW I am constantly annoyed by adverts for phone power bank batteries on the internet offering batteries with 90000000mah ratings! What is going on there??! I must get one of these!!)
@@AnthonyFrancisJones At school, in the days of Dymo tape, friends and I annotated a PP9: "Beware: 9000 mV". It just shows how the humour threshold shifts with maturity.
Excellent! Yes, the days of sending students to get a 'long weight' or 'some resistance' from the technician! On a more serious note I remember the problems the general public had dealing with the units after the Chernobyl disaster or even the 'massive' energy of the LHC. 14,000,000,000,000eV ! BTW what do you feel about commas as order of magnitude separators - I note my overseas pupils all use full stops. It gets very confusing!
Please consider supporting my work by buying me a coffee at
www.buymeacoffee.com/francisjonesa
Helps me buy bits and pieces to make these videos!
Very many thanks, F-J
I always like this kind of practical approach to physics. Unlike the tests where I got asked if voids in semiconductors have mass, and to calculate it.
Agreed! It is good if you can actually test something out and get a feel for it like in my experiments. I set myself a challenge of doing an experiment or demo every single lesson. Got harder with time and pressure! Thanks for watching and taking the time to comment too!
@@AnthonyFrancisJones Actually thank you for taking the time of making these videos and also replying! Cheers from Argentina!
@@cocusar My pleasure and it is always good to hear where people are watching from!
6;10 Argh!!! I always insisted my students include the units - it's Physics not Maths.
More than that, at A level and beyond I insisted on separating mantissa and exponenty bits, and the units, then dealing with each group separately. It provides a useful check.
Yes, you are absolutely right. There are at least two approaches and I think there is a time and a place for each. I always feel it provides some inner understanding if done well, for example Force x Velocity being in units of Power - not obvious a very first sight to a beginner! (BTW I am constantly annoyed by adverts for phone power bank batteries on the internet offering batteries with 90000000mah ratings! What is going on there??! I must get one of these!!)
@@AnthonyFrancisJones At school, in the days of Dymo tape, friends and I annotated a PP9: "Beware: 9000 mV". It just shows how the humour threshold shifts with maturity.
Excellent! Yes, the days of sending students to get a 'long weight' or 'some resistance' from the technician! On a more serious note I remember the problems the general public had dealing with the units after the Chernobyl disaster or even the 'massive' energy of the LHC. 14,000,000,000,000eV ! BTW what do you feel about commas as order of magnitude separators - I note my overseas pupils all use full stops. It gets very confusing!