GCSE Physics - Atmospheric Pressure #50

The video explains the composition of Earth's atmosphere, primarily made of nitrogen and oxygen, and its role in sustaining life. It discusses how atmospheric pressure decreases with altitude due to lower density and fewer gas particles. The video illustrates this concept by comparing pressure at sea level and higher elevations, highlighting the increased force and pressure at lower altitudes. It also explains how the weight of gas particles above an object contributes to pressure, affecting breathing at high altitudes, necessitating oxygen cylinders for mountain climbers.

Describe the relationship between gas particle density and pressure.

What happens to the weight of gas particles as you move higher in the atmosphere?