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Fig. 2. (Color online) A questionnaire provided to students. (a) I put a cup of warm water on top of the ice pack. How will the temperature of the water and the temperature of the ice pack change after some time? Explain in detail why such a change occurs. (b) The bridge is connected by an iron plate joint in the middle as shown in the figure. And there is a slight gap between the iron plate joints. In hot summer, what happens to the iron plate joints in the bridge when the temperature rises? Explain in detail why such a change occurs.
New Phys.: Sae Mulli 2024;74:578~588 https://doi.org/10.3938/NPSM.74.578
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