Chapter 2 Flashcards
(7 cards)
What is infrared radiation?
How can it be reduced?
A type of electromagnetic radiation that doesn’t require particles.
It can be reduced by using a shiny silver surface that will reflect the radiation.
What is convection?
How can it be reduced?
A convection current is the movement of particles with lots of thermal energy rising and denser less thermal energy particles sinking.
It can be reduced by insulation or small air pockets where there’s no space for particles to move.
What is conduction?
How can it be reduced?
Conduction is the process in which the transfer of heat takes place between objects by direct contact.
It can be reduced by using a bad conductor or insulation.
What are some examples of insulating methods?
Cavity walling
Double glazed windows
Loft insulation
Insulated flooring
What is the symbol and word equation for specific heat capacity?
Energy = mass x shc x theta E = m x c x theta (J) = (kg) (J/kg c) x (c)
What is specific heat capacity?
The energy needed to raise the temperature of 1kg by 1c
What is theta
The temperature change between the start and end temp
