What are the three types of heat transfer? Hint* C, C, R
Convection, Conduction, Radiation
15
What do two objects have to do in order for the transfer to be considered Convection?
They have to touch / make contact
10
What does heat do to particles?
Increases movement / increases kinetic energy
10
What does an increase in kinetic energy do to heat?
Increase in kinetic energy causes an increase in heat
10
In convection, what are the two materials heat transfers through?
Air and Water
15
In convection, what direction does heat move?
Up
10
True or False: Radiation is heat transferred through VISIBLE waves
false
5
Give two examples of conduction
15
Give two examples of radiation
15
True or false: The three heat transfers can change an objects state of matter
True
5
True or false: Baking a cake is an example of a change of matter
True
5
Your solar ovens captured what type of heat transfer?
Radiation
15
In your solar ovens the radiation from the sun heats up the air in the oven. The hot air then rises in the oven. The hot air rising is an example of what type of heat transfer?
Convection
15
If Hot air rises, and cold air sinks, Why are AC's placed above the room?
The cold air from the AC will sink in the room, cooling the entire room. If the AC was located on the floor, the air wouldn't move - nobody would feel it.
20
Every object has heat. What direction does the heat from an object have to travel in order for it to turn from Solid to Liquid?