Convection happens in FLUIDS and GASES. Which of these will convection NOT occur?
A air
B ocean water
C metal spoon
Convection will not occur in C) metal spoon.
Convection occurs in fluids and gases, but not in metals. Therefore, the correct answer is:
C) metal spoon
To determine which of these options convection will not occur, we need to understand what convection is and the conditions required for it to happen.
Convection is a type of heat transfer that occurs in fluids (liquids and gases) due to the movement of particles within the material. It happens when there is a temperature difference between two regions of the fluid, causing the warmer, less dense particles to rise and the cooler, denser particles to sink.
Now, let's analyze each option to see if convection can occur or not.
A) Air: Convection can occur in air. When a region of air is heated, it becomes less dense and rises, while the cooler, denser air sinks. This creates a convection current, causing heat transfer.
B) Ocean water: Convection can also occur in water. The same principle applies as with air. When a portion of ocean water is heated, it becomes less dense and rises, while the colder, denser water sinks, creating a convection current.
C) Metal spoon: In the case of a metal spoon, convection will not occur. Metal is a solid, and convection requires the fluidity of either liquids or gases. While metals are good conductors of heat, which enables them to transfer heat through conduction, they do not have the mobility necessary for convection.
Therefore, the correct answer is C) metal spoon. Convection will not occur in a metal spoon, as it is not a fluid or a gas.