PHY..............

2006-12-25 9:37 pm
When the average kinetic energy of all particles in a body increase , which of the following is correct ?
A ) The body is very hot .
B ) The temperature of the body increase .
C ) The potential energy of the body decrease .
D ) The specific heat capacity of the body increases .

回答 (1)

2006-12-26 1:49 am
✔ 最佳答案
B... coz
A) If the temp. originally is very cold... then a little increase in kinetic energy wil only raise the temp. for a bit, so it's still cool but not necessarily very hot
B) KE contributes to temp. increase. Correct
C) potential energy should be increasing
D) SHC of an object stays the same always, independent of increase in KE or PE or Total IE


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