Sound is a vibration travelling through the air. When it hits foam, it causes the foam to vibrate, which in turn causes friction. The friction causes heat.
no.
Acoustic foam is AA kind of foam designed to block sound
You need to get your car checked.
foam has better heat retention
foam made out of food sometimes if you blend food heaps it will turn into foam :)
Because it absorbs the sound but not all of the sound. :)
No.
No. Heat will melt the foam and possibly cause a fire
It is a good insulator of heat :)
Polyurethane Foam
yes
paper or foam cups