physicsquestions1,whenliquidwaterattemperature0Cfreezes,doesitexpandorcontract?2,whichhadgreaterdensity,iceorliquidwater?3,atwhattemperaturedoesliquidwaterhavethehighestdensity?a)0Cb)1Cc)4Cd)100C

Question

physics questions
1,when liquid water at temperature 0 C freezes,does it expand or contract?
2,which had greater density,ice or liquid water?
3,at what temperature does liquid water have the highest density?
a) 0 C
b) 1 C
c) 4 C
d)100 C

Answer 1

1 expand 冰的密度小,水的密度大
2 liquid water
3 选C
1. 等液体水在0℃时变成冰,是膨胀还是收缩?
当然是膨胀了
2. 那个有更大的密度,冰还是液体水?
冰是0.9 水是1
3 在多少摄氏度的时候水的密度最大?
4℃（大部分人都知道）