| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ2.16 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 16 | Adapted from | N/A |
Question
Two electrodes, separated by a distance d, in a vacuum are maintained at a constant potential difference. An electron, accelerated from one electrode to the other, gains kinetic energy Ek.
The distance between the electrodes is now changed to 13d.
What is the gain in kinetic energy of an electron that is accelerated from one electrode to the other?
- Ek3
- Ek
- 3Ek
- 9Ek
Markscheme
B
Examiners report
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