International Physicists' Tournament - 14th Edition IPT connect |
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4. Filled ball

A ping-pong ball that has been partially filled with some fluid or sand will bounce much lower than a filled one. Explain this phenomenon. How does the height of the bounce depend on the relevant parameters? https://youtu.be/tGDj783Y6kQ?t=85

Report Opposition Review
Brazil

9.00

Colombia

5.50

Croatia

8.00

Denmark

4.25

7.50

France

7.40

Italy

7.25

7.50

Netherlands

7.50

Romania

4.75

Slovenia

7.25

6.40

Sweden

7.25

Switzerland

6.75

UK

6.00

MEAN

6.43

7.45

6.58