Helpmyphysics

Answers to Get Fit for Physics Higher

Get Fit Physics Spring Break Revision

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.

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.

1. Find the threshold frequency for each of the metals in the simulation
2. Does an increase in the irradiance (intensity in the simulation) have any effect on the maximum kinetic energy of each ejected electron?

Click to Run

Have some fun.

Hi Physics lovers.
Check out the wonderful PhET site`s sound interference simulation by clicking the picture below.
Follow these instructions:

1. Click the tab called Two source interference
2. Set the frequency of the sound to 200Hz and enable sound
3. Move the man`s head about and listen for maximum and minimum sounds
4. Find a maximum and determine whether changing the frequency will change the position of the maximum sound

Click to Run

Hi S3 Physicists! Here is a video introducing you to the electromagnetic spectrum.

Hi physics lovers here is the latest movie using the pHET physics simulation site to help explain how the temperature of a gas inside a sealed fixed volume container affects the pressure of a gas in the container.

Hi physics lovers here is your nasty nasty nasty nine test on Sound & Light.