Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
Already signed up?
New to KöMaL?

Problem M. 320. (January 2012)

M. 320. Drill (or in any other way make) a small hole to the bottom of a 1.5 litre plastic bottle, and fill the bottle with water to a height of H. Measure how the time T during which the water flows out of the water depends on the diameter of the hole and on the height of the water H. According to theoretical reasons T is proportional to some power of H. According to the measured data what is this exponent?

(6 pont)

Deadline expired on February 10, 2012.


18 students sent a solution.
6 points:Juhász Péter, Kollarics Sándor, Kovács 444 Áron, Szabó 928 Attila.
5 points:Papp Roland, Szigeti Bertalan György.
4 points:4 students.
3 points:4 students.
2 points:2 students.
1 point:2 students.

Problems in Physics of KöMaL, January 2012