Heat Transfer - Conduction and Convection _ GCSE Physics

The video tutorial explains the concepts of conduction and convection as methods of heat transfer. Conduction occurs in solids where heat is transferred through direct contact, with metals being excellent conductors due to free electrons. Convection occurs in gases and liquids, where heated substances rise and cooler ones sink, creating convection currents. An example of convection is the heating of a room by a radiator.

What is conduction and how does it occur between substances?

Why do metal benches feel colder than wooden ones?

Explain the process of convection in gases and liquids.

What happens to a gas or liquid when it is heated?

Describe how a convection current is created.