Friday, 1 August 2014

Think 5


Individual Answer:
Heating:
Since gas expands faster than solids, the rate of EXPANSION of the air space would be faster than the rate of expansion of the ring, causing the air in the space to push A outwards, widening the gap for ball to pass through.
Cooling:
Since gas contract faster than solids, the rate of contraction of the air space would be faster than the rate of contraction of the ring. Hence, the ring becomes thinner, the air space would be smaller for ball to pass th.

Conclusion: Heat the ring.

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