Air Pressure, Thermal Expansion, and Atmospheric Science
Questions about air pressure differences, thermal expansion of fluids, convection, and atmospheric circulation patterns
Questions
Question 1 Multiple Choice (Single Answer)
Why do two balloons come closer when we blow in the space between them ?
- Greater pressure inside the balloons than the reduced pressure in between them drives the balloons towards one another.
- Blowing air in between increases the pressure in between the balloons pulls them closer.
- The gravitational force pulls the two balloons closer.
- None of the above.
Question 2 Multiple Choice (Single Answer)
When a vehicle travels very fast, a region of ______ is created temporarily just behind it.
- High pressure
- Low pressure
- High density
- Cyclone
Question 3 Multiple Choice (Single Answer)
Which of the following principle shows that if you increase air speed its pressure will decrease?
- Darwin principle
- Einstein principle
- Bohr principle
- Bernoulli's principle
Question 4 Multiple Choice (Single Answer)
Increase in air speed is associated with ______________ .
- increasein air pressure
- decrease in air pressure
- increase in air temperature
- decrease in air temperature
Question 5 Multiple Choice (Single Answer)
A piece of paper is kept on the table. You have to lift it from the table by blowing high-speed air over it. In which direction will you blow the air?
- Sideways
- In the upward direction
- In the downward direction
- In the upward direction below the table
Question 6 Multiple Choice (Single Answer)
Two pieces of papers are held parallel. Air is blown with a high speed in between them. Which of the following phenomena will be observed?
- The papers will move away from each other.
- The papers will move towards each other.
- The papers will stay at their position.
- The papers will catch fire due to increase in air temperature.