Podcast
Questions and Answers
What is the SI unit of pressure?
What is the SI unit of pressure?
- Pound-force per square inch (psi)
- Newton per square metre (N/m2)
- Atmosphere (atm)
- Pascal (Pa) (correct)
Which unit of pressure is defined as 1⁄760 of standard atmospheric pressure?
Which unit of pressure is defined as 1⁄760 of standard atmospheric pressure?
- Centimetre of water
- Millimetre of mercury
- Inch of mercury
- Torr (correct)
What is gauge pressure relative to?
What is gauge pressure relative to?
- Standard pressure
- Atmospheric pressure
- Ambient pressure (correct)
- Absolute pressure
Which unit is a traditional measure of pressure in the imperial and US customary systems?
Which unit is a traditional measure of pressure in the imperial and US customary systems?
Which unit of pressure is used to express pressure in terms of the height of a column of a particular fluid in a manometer?
Which unit of pressure is used to express pressure in terms of the height of a column of a particular fluid in a manometer?
Which of the following is a result of germination in seed plants?
Which of the following is a result of germination in seed plants?
What is the process of reactivation of metabolic machinery of the seed resulting in the emergence of radicle and plumule called?
What is the process of reactivation of metabolic machinery of the seed resulting in the emergence of radicle and plumule called?
What do fully developed seeds of most plant species contain?
What do fully developed seeds of most plant species contain?
Which organisms does the term germination apply to?
Which organisms does the term germination apply to?
What are empty seeds which never germinate?
What are empty seeds which never germinate?
Study Notes
Pressure Units
- The SI unit of pressure is the Pascal (Pa).
- The unit of pressure defined as 1/760 of standard atmospheric pressure is the Torr.
- Gauge pressure is measured relative to atmospheric pressure, often considered zero reference.
- The traditional measure of pressure in imperial and US customary systems is pounds per square inch (psi).
- Pressure can also be expressed in terms of the height of a fluid column in a manometer, commonly using the millimeter of mercury (mmHg).
Seed Germination
- Germination in seed plants results in the growth of new plant structures, specifically roots and shoots.
- The process of reactivating the metabolic machinery of the seed leading to the emergence of the radicle (root) and plumule (shoot) is called germination.
- Fully developed seeds of most plant species contain a complete embryo, stored nutrients, and a protective seed coat.
- The term germination applies primarily to seed plants, including angiosperms and gymnosperms.
- Empty seeds that never germinate are termed non-viable seeds.
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Description
Test your knowledge of pressure with this quiz! Explore different units of pressure, understand gauge pressure, and learn how pressure is measured. Perfect for anyone interested in physics, engineering, or everyday applications of pressure.
