SSS10 Physical

This covers the applications of solar collectors on a domestic and industrial scale including room heating, desalination and power generation.

Devices used to collect solar radiation are introduced and explained. Types of collectors covered include flat plate, line focus and point focus collectors with their parts and working principles.

Differences and similarities between solid friction and fluid friction/viscous drag are explored. Factors that affect viscosity are explained while some applications of viscosity are presented.

The concept of viscosity is explained both within the fluid and through the action of a fluid on a solid moving through a fluid. Weight, upthrust and viscous drag force balance for a solid falling through a liquid is explained leading to an explanation of terminal velocity.