The vrms voltage is the dc equivalent of the given ac voltage. Think of it as the `battery` equivalent of the ac source.
Study the above lesson to find the vrms from an ac source.
Hi Physics lovers study this lesson on how to find the frequency of an ac signal from an oscilloscope.
Hi physics lovers here is a worked example on how to find the tension of a rope holding a balloon onto the ground.
This is a famous Higher Physics question, so study it and learn those forces.
My second year classes have been playing with the microelectronic boards all last week. The classes are very interested in microelectronics. We spent about half an hour looking at a deskfull of ipods, mp3 players and mobile phones talking about what happens inside these magical devices.
We also talked about creating microelectronic circuits that could benefit society. We will be hard at work in the coming weeks working in teams using the above boards.
So if any of you want to experiment click the picture of the board and have some fun designing your circuits.
Magnetic field lines made visible by iron filings.
Happy New Year of 2009
My second year classes have been studying magnets and magnetic fields. We had a great discussion about magnetic fields. Our talk after our experiments included how vital is our planet`s magnetic field. We even managed to squeeze in a discussion about the Northern Lights.
Check out the cool picture of the magnetic field made visible around a magnet using iron filings.
If you want to find out about the Northern Lights click on the links below.
My Christmas Board
I asked my first year class to write on the board what a scientist would want as a present on Christmas morning.
There were some brilliant suggestions.
Anyway, I hope you have a merry Christmas and a great holiday.
Mr. Mallon
Hot on the heels of my first year experimenting with sound, my other first year class investigated light rays and how they can be reflected off mirrors and what happens when these light rays pass through different glass shapes.
The class had great fun experimenting with light, as can be heard with the whoop Kelsey Cullen made at the end of the movie.
Well done first year!
My first year pupils have been studying sound lately. After exploring some experiments they felt that they could put a small movie together. The amazing thing was they were given only ten minutes to come with these ideas.
Well done first year!
Martin Cunningham from Fife has produced a fantastic set of colourful higher physics notes.
If you wish to get a copy click on the link below. The notes can be downloaded in a pdf format.
If you do not have Adobe Acrobat Reader to view these notes then I`ve included a link as well.
I`m sure you`ll enjoy Martin`s wonderful notes.
Martin Cunningham`s Unit One Higher Notes
Adobe Acrobat Reader 9
My second year science class started to ask about the famous physicist posters I have on my lab wall.
I promised to give them a link to the Physics Central website which has a colouring in book of the famous physicists throughout history.
Check out the link here: Physics Colouring Book
