Explain how a convection current forms when a pan of water is being heated over a stove

The covection current forms because the base of the pan heats up as it gains energy from the stove via conduction, the pan then subsequently heats the water that is close to the bottom. As the water gains heat the convection current forms as the hot air at the bottom of the pan rises since the heat gain has lowered the density of the water. As the hot water rises the cooler water sinks to the bottom and is then heated itself, this water will then rise and again it will be replaced by cooler water, therefore the convection current has been formed. 

JH
Answered by Jack H. Physics tutor

16615 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

What is thermionic emission?


Calculate the acceleration of particle thats velocity changes from 20ms^-1 to 40ms^-1 in 5 seconds, assuming its constant.


Jane drops a football from the roof onto the ground below. The ball weighs 0.8kg and the distance the ball falls is 5m. Assuming there are no external forces acting on the ball, what speed will the ball be travelling at just before it hits the ground?


Define the term ultrasound wave


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning