Comment on the remarks of the follwoing students. Do you agree with them?
explain briefly.
Student A:
When we suck soft drink using a straw, we exert an upward force on the soft drink.
Physics Gas Law40
2010-03-21 8:58 pm
回答 (1)
2010-03-21 9:29 pm
✔ 最佳答案
No. The student cannot exert such a large sucking force on the soft drink.In fact, the student just suck the air in the straw into his mouth. Pressure is then reduced inside the straw. There is a pressure difference between the inside and outside air. The atmospheric pressure outside therefore pushes the soft drink up the straw to restore the pressure difference.
收錄日期: 2021-04-29 17:33:57
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