Heat Transfer
Thermal Properties
Thermal Energy & Heat
100
Why is holding a mug of hot chocolate and example of heat transfer through CONDUCTION?
because the mug in your hands is physical contact. conduction is the transfer of heat through physical contact.
100
Most metals transfer energy well making them good _______ of heat.
Conductors
100
Heat is always transferred from _______ areas to ________ areas.
Heat is always transferred from warm areas to cool areas.
200
What is an example of heat transfer through radiation?
Fire, Sun, Toasters, Microwaves, Radiators, Space heaters....... answers may vary
200
Materials that do not conduct heat well are used to store food because they do not let heat transfer in or out. These materials are good _______
insulators
200
The total energy (KE+PE) of particles in an object is?
Thermal Energy
300
Why is boiling water an example of heat transfer through convection?
Boiling water shows the flow of liquids in a convection current. The hot fluids rise and the cooler fluids sink.
300
Sometimes in the summer your jewelry, clothes, and shoes feel tighter because your body can swell. This is due to _______.
Thermal Expansion
300
as the thermal energy of matter increases the particles do 2 main thing, what are they?
The particles expand and speed up
400
a Green House uses 2 methods of heat transfer?
What are they and how do they work together?
Convection and Radiation
The greenhouse heats up through radiation from the sun. Ss the air inside gets warmer, it will start to circulate and form a convection current that transfers heat throughout the greenhouse.
400
In Thermal Expansion:
What is the result of heat?
What is the result of cold?
Heat causes materials to swell and expand
Cold causes materials to contract and shrink
400
Temperature is a measure of the ______ _______ ______ of individual particles of an object.
average kinetic energy