What is convection?
Convection is a heat transfer process that occurs in fluids. During convection, hot, less dense fluids rise to the top of a system, while cooler, more dense fluids sink to the bottow of the system under gravity.
AD
Related Physics GCSE answers
All answers ▸What is the wavelength of a wave travelling at 20ms^-1 with a time period of 0.2s
A lorry is travelling around a roundabout at constant speed. Why is its velocity changing?
Find the period of a wave given that it has a speed of 200m/s and a wavelength of 2m
A skydiver is at a height of 10,000 m. Assuming no air resistance, how fast is the skydiver travelling at 9,990 m above the ground?