Radiation and Risk
Here is a news story about radiation from the BBC News website.
The story mentions terms like Becquerel and Sievert. These are the sort of news stories that you can now read after studying radiation
Find the article here.
CERN Virtual Tour
Here is a virtual 3D tour of the Large Hadron Collider at the CERN.
CERN CMS 4 in Europe
Photoelectric Effect Fun
Hi Physics lovers! Click below to try the wonderful PhET simulation on the photoelectric effect.
Carry out the experiment and see if you can answer these questions.
- Find the threshold frequency for each of the metals in the simulation
- Does an increase in the irradiance (intensity in the simulation) have any effect on the maximum kinetic energy of each ejected electron?
Have some fun.
Radiation Doses
Here is an interesting poster showing the dose equivalent for various situations.
Dose equivalent is measured in sieverts.
Photoelectric effect fun.
Interference with Sound Waves
Hi Physics lovers.
Check out the wonderful PhET site`s sound interference simulation by clicking the picture below.
Follow these instructions:
- Click the tab called Two source interference
- Set the frequency of the sound to 200Hz and enable sound
- Move the man`s head about and listen for maximum and minimum sounds
- Find a maximum and determine whether changing the frequency will change the position of the maximum sound
Time Machine: Sound Vibrations
Hi first year scientists here is the movie of some of the experiments we tried out to discover how sound is made.
Remember this is a journey of discovery leading us to how Alexander Graham Bell invented the telephone around the time when our time machine lands.
The Time Machine: Telephone
Hi first year check out this movie about the people who invented the telephone.

