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Time in seconds for 10 gram weights to sink to the bottom of a beaker of ketchup
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Trial
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Still Ketchup
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|
| 1 |
5.34 |
4.38 |
| 2 |
7.84 |
4.00 |
| 3 |
6.72 |
4.75 |
| 4 |
8.53 |
4.19 |
| 5 |
10.75 |
5.81 |
| average |
7.44 |
4.65 |
This chart shows the time it took, in seconds for 10 gram brass weights to drop through to the bottom of a beaker of ketchup. We used 10g weights because 20g weights dropped through the ketchup very quickly and we had trouble timing them with the stopwatch. The 5g weight wouldn't sink at all.
The results in the first column were with ketchup that had been sitting still for about an hour. Then we stirred the ketchup vigorously for a minute or so and tested it again. The results of this test are shown in the second column.
Can you find weights that are suspended in still ketchup but sink in stirred ketchup?
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