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Questions and Answers
What is gauge pressure?
What is gauge pressure?
- The atmospheric pressure at a given location
- The total pressure measured by a gauge
- The excess pressure over atmospheric pressure (correct)
- The pressure exerted by a gauge
If the gauge pressure at a depth of 10 m in water is 1 atm, what is the absolute pressure?
If the gauge pressure at a depth of 10 m in water is 1 atm, what is the absolute pressure?
- 1 atm
- 3 atm
- 2 atm (correct)
- 4 atm
What is the value of atmospheric pressure given in the text?
What is the value of atmospheric pressure given in the text?
- 1 atm
- 13600 kg/m³
- 0.76 m
- 105 N/m² (correct)
What is negative pressure?
What is negative pressure?
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What is an example of negative pressure given in the text?
What is an example of negative pressure given in the text?
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Study Notes
Pressure Concepts
- Gauge pressure is the difference between the absolute pressure and the atmospheric pressure.
- At a depth of 10 m in water, the gauge pressure is 1 atm, which means the absolute pressure is 1 atm + atmospheric pressure.
- The value of atmospheric pressure is 1 atm (standard atmospheric pressure).
- Negative pressure is a pressure below atmospheric pressure, creating a partial vacuum.
- An example of negative pressure is the pressure inside a drinking straw when you suck on it, which is less than atmospheric pressure.
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Description
This quiz covers the concept of gauge pressure, absolute pressure, and how to calculate them. It includes an example calculation of finding the absolute pressure of a body placed under water. Negative pressure is also discussed in the context of pressure lower than atmospheric pressure.
