Atmospheric Pressure (GCSE Physics)

What is the SI unit of atmospheric pressure?

A manometer shows a pressure difference when one side is connected to a gas and the other to the atmosphere. Which quantity does the height difference of the liquid in the manometer directly represent?

When a pilot climbs to higher altitude, what happens to the absolute atmospheric pressure and why might passengers’ ears ‘pop’?

A diver at 10 m depth underwater experiences pressure from the water. Which contributes most to that pressure?

A student measures the force of the air on a square plate of side 0.50 m. If atmospheric pressure is 1.02 × 10^5 Pa, what is the force on the plate?

A hydraulic jack uses a small-area piston with force F1 to produce a large force F2 on a larger-area piston. Which principle explains this?

A 2.0 m tall column of air has density 1.2 kg/m3. Using g = 9.8 N/kg, calculate the pressure increase due to this column.

Why do meteorologists use station pressure corrected to sea level?

Why does atmospheric pressure decrease as altitude increases?

If a vertical column of air has pressure difference ?p = 12 000 Pa between bottom and top, and g = 9.8 N/kg, what is the approximate mass per unit area (areal mass) of that air column? (Use ?p = areal mass × g)

At sea level atmospheric pressure is about 101 325 Pa. Which of the following is closest to this value in kilopascals?