Questions and Answers
Which unit is used to express pressure in the SI system?
Pascal
What is gauge pressure?
Pressure relative to the ambient pressure
Which unit is defined as 1/760 of standard atmospheric pressure?
Torr
Which of the following best describes force?
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What is the SI unit of force?
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According to Newton's second law, the acceleration of an object is directly proportional to which of the following?
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Study Notes
Pressure and Force
- The unit used to express pressure in the SI system is the Pascal (Pa).
- Gauge pressure is the pressure relative to atmospheric pressure.
- The unit defined as 1/760 of standard atmospheric pressure is the Torr.
- Force is best described as a push or pull that can cause an object to change its motion.
- The SI unit of force is the Newton (N).
- According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it.
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