P1 Keeping homes warm

HideShow resource information
How is energy loss reduced by double glazing?
Conduction
1 of 9
What is double glazing?
Two piece of glass with gap in between filled with a gas or containing a vacuum
2 of 9
How does double glazing work?
Particles in a gas are far apart -> difficult to transfer energy & no particles in a vacuum -> impossible to transfer energy by conduction
3 of 9
How is energy loss reduced by loft insulation?
Conduction & convection
4 of 9
How does loft insulation work?
Fibreglass 'wool' laid across loft floor reduces conduction through ceiling into roof space & Both sides of the ceiling are the SAME temperature so no energy can be transferred by convection
5 of 9
How is energy loss reduced by cavity wall insulation?
Conduction & convection
6 of 9
How does cavity wall insulation work?
Two layers of bricks with gap between filled with foam -> air in foam is a good insulator -> air cannot move by convection as it is trapped in the foam
7 of 9
How is energy loss reduced by insulation blocks?
Radiation
8 of 9
How do insulation blocks work?
Shiny foil on both sides -> energy from the sun is reflected back (cool home in summer) & energy from the home is reflected back (warm home in winter)
9 of 9

Other cards in this set

Card 2

Front

Two piece of glass with gap in between filled with a gas or containing a vacuum

Back

What is double glazing?

Card 3

Front

Particles in a gas are far apart -> difficult to transfer energy & no particles in a vacuum -> impossible to transfer energy by conduction

Back

Preview of the back of card 3

Card 4

Front

Conduction & convection

Back

Preview of the back of card 4

Card 5

Front

Fibreglass 'wool' laid across loft floor reduces conduction through ceiling into roof space & Both sides of the ceiling are the SAME temperature so no energy can be transferred by convection

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Practical insulation,Conduction Convection Radiation, Energy efficiency resources »