Quiz on Atmospheric Pressure

At sea level, the average atmospheric pressure is approximately:

• 101.325 Pa

• 1013.25 hPa

• 1 Pa

• Both A and B

Which factor does not directly affect atmospheric pressure?

• Temperature

• Humidity

• Altitude

• Color of the surface

Which type of barometer uses a flexible metal capsule instead of liquid?

• Mercury barometer

• Aneroid barometer

• Digital barometer

• Hydrostatic barometer

Which pressure system is usually associated with fair weather?

• Low-pressure system

• High-pressure system

• Storm front system

• Jet stream system

Define atmospheric pressure in your own words.

Explain why atmospheric pressure decreases with altitude.

State the basic formula for pressure and explain the meaning of each variable.

Give two advantages and two disadvantages of mercury barometers compared to aneroid barometers.

Calculate the atmospheric pressure at a height of 1,000 m using the hydrostatic equation, given that: - Density of air, ρ = 1.225 kg/m³ - g = 9.8 m/s² - h = 1000 m

A mercury barometer shows a column height of 750 mmHg. Convert this pressure into pascals. (Hint: 1 mmHg = 133.3 Pa)