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Heat Transfer

Conduction Convection Radiation

QuestionAnswer
What is another word for thermal in, for example, thermal conduction? Heat
Which method of thermal transfer works best in solids? conduction
What have metals got that makes them better at thermal conduction? free (or delocalised) electrons
Why are liquids and gases both called fluids? They can flow.
Which method of thermal transfer works best in fluids? convection
What is another name for thermal or heat radiation? Infra Red
Which type of thermal transfer is the only one that works in a vacuum? radiation
What is the opposite of a conductor? insulator
One word for bouncing radiation off a surface. reflection (or reflecting)
One word for soaking up thermal radiation. absorbing (or absorption)
One word for hot things giving off thermal radiation. emitting (or emission)
Best kind of surface for reflecting: shiny (glossy) and light
Best kind of surface for absorbing: dark and dull (matt)
Best kind of surface for emitting: dark and dull (matt)
Best insulator in the universe and why: vacuum (no particles)
Best insulator between free air and trapped air and why: trapped air (trapping it stops convection currents)
Kind of window that uses trapped air for insulation: double glazing
In a solid that is heated atoms and molecules.. .. vibrate more, and get further apart.
In a fluid that is heated atoms and molecules.. .. move faster and get further apart.
Density equals mass divided by volume
If its particles get further apart a fluid's density gets less (smaller, lower)
Created by: waslancing
 

 



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