Heat transfer
Conduction
The heat transfer directly by the touch of one thing to another.
Radiation
The heat transfer where it gets transferred in waves of heat energy.
Convection
The heat transfer where warm air rises and cold air sinks.
conduction- The spoon gets heated directly by the hot soup.
spoon in a cup of hot soup becomes warmer
convection- the warm water is warmer than all the other water particle, so it rises to the top, and the cold water is on the bottom.
warm water at the top of the swimming pool
convection- when the hot air rises and the cold air sinks, the two temperatures collide, it creates wind currents, formed by convection.
wind currents
radiation- the campfire gives off heat in waves.
you can feel the heat of a campfire
radiation- the sun's rays would be harmful to your skin and the heat radiates on your body.
you get sunburnt
conduction- when you touch the warm water, it makes you warm with direct contact.
A person takes a warm bath
conduction- the pan is hot and it heats the vegetables directly.
Stir frying vegetables
conduction- the egg fries when it directly hits the pan.
raw eggs begin to fry when they hit the pan
radiation- the flames heated the buger with waves from under the grill bars.
Grilling hamburgers over a charcoal flame
convection- the description is basically the definition of convection.
Heated air rises, cools, then falls. Air near a heater is replaced with cooler air, and the cycle repeats
Convection- It perfectly fits the description
Hot water rises and cold water sinks
convection- in the attic, it is probably very hot, because the heat rises and pushes the cold air down into the basement.
basement is cooler than the attic
convection- the potatoes are at the top of the water
boiling potatoes in water
radiation- the lightbulb has lots of energy i it.
heat from a lightbulb
convection- the warm air rises which rise the hot air balloon.
hot air balloon rises
conduction- the cold water directly cools the pan when it is touched with cold water.
hot pan is cooled by running it under cold water
conduction- When you iron something, it directly heats up by the heated iron on the cooler clothes.
iron
radiation- In a microwave oven, there isn't fire that shoots onto the food, there is heat radiated on the microwaved food. It even says "wave" in microwave!
microwave oven
convection- the fire goes up, like heat goes up.
propane heater
convection- the radiator makes the warm air rise and the cold air pushes down, which makes the cycle keep repeating.
radiator warms your hands
