convection
Warm air/water always
Rises
What does convection occur in?
Air,gases,liquids
Why is the air by the ceiling warmest
Because warm air rises and is light.
How can a glass of water reach thermal equilibrium?
By stirring a glass of water until the glass is equally heated
Which is denser? Cold air or warm air?
Cold air
Explain the cycle of convection
Cold air sinks pushing warm air up. Warm air soon cools pushing what was once cold air and now is warm air up.
Heat transfer through liquids, air, or a solid rock is known as
Convection
Cold air sinks because
It is denser.
Warm air rises because
It is light and pushed up by cold air
What is thermal equilibrium?
It is when a a liquid is equally heated.
Cold air/water always
Sinks
How do you think convection applys to air conditioners being on ceilings?
So the cold air flows to the room sinking to the ground creating a convection current
Convection is
The cycle of cool air and warm air rising and sinking
A convection current is
The flow of hot and cold regions through a fluid.
When water particles heat up they
Vibrate faster and faster.
How might convection happen in a pot of boiling water?
Water that is heated rises and cold water sits at bottom waiting to be heated.
Can convection happen in water?
Yes
Does convection occur in air?
Yes
Does convection happen everywhere?
Yes it even occurs inside and out side.
Is convection useful.
Yes it provides us with cool bair