What type of question would come up for a 6 marker question on the big bang... kinda my weak point
Also what features are there on a vacuum flask.. my revision guide gives:
Vacuum (reduces radiation,Convection& conduction)
Shiney surface on inside(reduce radiation)
Cap is plastic filled with foam
Held by insulating foam
Also how does cavity wall insulation stop convection and how does CMBR prove the big bang theory
Thanks if you can reply... GOOD LUCK