Recent content by magpie5

  1. M

    Problem with the word (deceleration)

    Thanks for all comments. All points taken. However, I still have a problem with the English language. Yes deceleration is a reverse acceleration for example applying the brakes in a car. Yes you decelerate. But the word (de) _ hits me.:redface:
  2. M

    Problem with the word (deceleration)

    Hi all, i think the word deceleration is used incorrectly and can cause problems for students learning physics For example, if i start from rest and run as fast as i can until i eventually more at a constant speed. Then my interperetation of this is that (i) i accelerate at some rate (ii)...
  3. M

    Photoelectric effect and what happens to the electron

    Energy perspective: The electron is bound (held) to the metal by a force (think of water atoms held to the water) If a photon interracts with an electron ( the electron absorbs the photon) the electron will ecape the binding (energy) force of the metal only if the energy of the photon is...
  4. M

    Direction of Work: Electron-Electron Repulsion

    Hi, when work is done, there must be some kind of enregy transfer or transformation eg from kinetic to kintec or potential to kinetic etc. For two electrons interracting, say colliding, then one electron will gain an amount of energy due to the interraction and the other will loose an equal...
  5. M

    How do we alleviate the shortage of qualified physics teachers?

    Hi all, another problem is that if you apply as a high school physics teacher, you may only teach physics as a small percentage of the total teaching load. The other 90% of your load (say) could be teaching some area your not familiar with such as biology etc. Thats what can happen in...
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