Podcast
Questions and Answers
What is the unit of measurement for absolute pressure?
What is the unit of measurement for absolute pressure?
- Pa (correct)
- PSI
- cm
- kg/m
What is the force that attracts the air, resulting in atmospheric pressure?
What is the force that attracts the air, resulting in atmospheric pressure?
- Gravity (correct)
- Magnetic force
- Electromagnetic force
- Frictional force
What is the 'standard' weight of the earth's atmosphere at sea-level?
What is the 'standard' weight of the earth's atmosphere at sea-level?
- 14.7 PSI (correct)
- 16.7 PSI
- 10.7 PSI
- 17.7 PSI
What is the term for pressure measured relative to the atmospheric pressure at sea level?
What is the term for pressure measured relative to the atmospheric pressure at sea level?
What is the term for pressure below the atmospheric pressure at sea level?
What is the term for pressure below the atmospheric pressure at sea level?
What is the term for pressure measured above or below the atmospheric pressure at sea level?
What is the term for pressure measured above or below the atmospheric pressure at sea level?
What is the mixture of gases that has weight and exerts pressure?
What is the mixture of gases that has weight and exerts pressure?
What is the absolute pressure scale based on?
What is the absolute pressure scale based on?
What is gauge pressure measured using?
What is gauge pressure measured using?
What is a vacuum?
What is a vacuum?
What is the purpose of the vacuum scale?
What is the purpose of the vacuum scale?
What is the reading on the mercury vacuum gauge when the pressure is equal to atmospheric pressure?
What is the reading on the mercury vacuum gauge when the pressure is equal to atmospheric pressure?
What would be the pressure in a closed chamber if we move all the air out of it?
What would be the pressure in a closed chamber if we move all the air out of it?
What happens when an unconnected pressure gauge with a vacuum scale is read?
What happens when an unconnected pressure gauge with a vacuum scale is read?
What is blood pressure?
What is blood pressure?
Where is blood pressure usually measured in humans?
Where is blood pressure usually measured in humans?
What is the systolic pressure?
What is the systolic pressure?
What is the normal range of systolic pressure in mmHg?
What is the normal range of systolic pressure in mmHg?
What is the diastolic pressure?
What is the diastolic pressure?
What is a healthy blood pressure reading?
What is a healthy blood pressure reading?
What is surface tension pressure?
What is surface tension pressure?
What is the primary reason for the existence of surface tension in a liquid?
What is the primary reason for the existence of surface tension in a liquid?
What determines the strength of surface tension in a liquid?
What determines the strength of surface tension in a liquid?
Why is the surface tension of water high?
Why is the surface tension of water high?
What is the net force experienced by molecules at the surface of a liquid?
What is the net force experienced by molecules at the surface of a liquid?
In the bulk of a liquid, molecules are interacting with each other in which direction?
In the bulk of a liquid, molecules are interacting with each other in which direction?
What is the primary difference between molecules at the surface and in the bulk of a liquid?
What is the primary difference between molecules at the surface and in the bulk of a liquid?
What are the typical units of measurement for surface and interfacial tension?
What are the typical units of measurement for surface and interfacial tension?
Why do molecules at the surface of a liquid experience a net force towards the bulk?
Why do molecules at the surface of a liquid experience a net force towards the bulk?
What is the result of the net inward force experienced by molecules at the surface of a liquid?
What is the result of the net inward force experienced by molecules at the surface of a liquid?
Surface tension arises from adhesive forces between the liquid molecules and the surrounding air.
Surface tension arises from adhesive forces between the liquid molecules and the surrounding air.
At the surface of a liquid, molecules have the same neighbors on all sides.
At the surface of a liquid, molecules have the same neighbors on all sides.
The surface tension of a liquid is dependent on the type of molecular interactions present.
The surface tension of a liquid is dependent on the type of molecular interactions present.
The units of surface tension are typically measured in meters per second (m/s).
The units of surface tension are typically measured in meters per second (m/s).
The net force experienced by molecules at the surface of a liquid is zero.
The net force experienced by molecules at the surface of a liquid is zero.
Molecules in the bulk of a liquid interact equally with each other in all directions.
Molecules in the bulk of a liquid interact equally with each other in all directions.
The surface tension of water is low due to weak molecular interactions.
The surface tension of water is low due to weak molecular interactions.
Surface tension is a property of gases only.
Surface tension is a property of gases only.
The strength of surface tension is the same for all liquids.
The strength of surface tension is the same for all liquids.
Surface tension is responsible for the pressure exerted by a liquid on its container.
Surface tension is responsible for the pressure exerted by a liquid on its container.
