Atmospheric Pressure (GCSE Physics)

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

A weather map shows two neighbouring areas: a small steep pressure change over a short distance and a wide gentle pressure change elsewhere. Where will the wind be strongest?

A column of air exerts pressure because air molecules

A student uses a syringe with a sealed tip and records pressure as they push the plunger in slowly at constant temperature. Which gas law applies to explain the observed pressure change?

A sealed tyre gauge reads 220 kPa gauge. What is the approximate absolute pressure if atmospheric pressure is 101 kPa?

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

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)

When climbing a mountain, atmospheric pressure decreases and boiling point of water falls. Why does water boil at lower temperature at altitude?

Two students compare pressures: Student A says atmospheric pressure is the same in all directions at a point. Student B says pressure acts only downward. Which is correct and why?

A sealed syringe contains trapped air. If the plunger is pushed slowly reducing the volume but temperature is kept constant, what happens to the pressure inside?

An air pocket under a car tyre will change pressure when the tyre rolls over a bump. What causes the local pressure increase under the tyre?