Convection

Question 1

Where does convection happen

Answer 1

In liquids and gases

Question 2

What is convection

Answer 2

The movement of heat in liquids and gases

Question 3

Give an example of an experiment of convection currents

Answer 3

1. A fluid such as air or water is heated
2. It expanses and so becomes less dense than the surrounding cooler fluid
3. it floats upwards and cooler fluids go in to replace it
4. In turn, this colder fluid is heated, expands and rises
5. Meanwhile, the hotter fluid gets further away from the heat source and cools, it then sinks back down

Question 4

Why can’t convection occur in solids

Answer 4

Convection does not occur in solids because the particles within are too tightly packed to facilitate the process. Convection requires actual movement between the particles within a substance in order to transfer heat which is only possible in a fluid state of matter such as liquid or gas.