IPT 2017 IPT connect | IPT 2017 Physics Fights Ranking Problems Participants Jury members

5. Popcorn

At a certain temperature, popcorn bursts open, jumps and emits a ‘pop’ sound. Devise a method to estimate the jump height of the corn kernels based on measurements of the sound of the pop and determine the limits of the precision in your chosen method. Typical parameters for consideration may include the type of corn, initial positioning of corn, heating mechanism, heat, heating rate, kernel coupling, etc.

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China

7.00

Colombia

6.00

Croatia

6.25

Germany

7.00

7.00

Greece

5.75

7.25

Russia - Voronezh

7.25

Slovenia

6.00

Sweden - KTH

6.25

6.25

Switzerland

5.25

USA

6.75

Ukraine

7.00

Venezuela

5.00

MEAN

5.90

6.65

6.65