中三科學物理疑惑

1.)因物體原本溫度高過四周,當熱散失於四周時,物體溫度會漸漸和四周的溫度一樣,但不會低於四周溫度.
2.)當電熱器沒有完全浸在水中時,有部份能量會流失四周,而把電熱器完全浸在水中就可以減少能量流失,令驗結果會更準確.

Heat transfer occurs only when two bodies have different temperatures
- one higher than the other
heat will be transferred from the higher temperature body
to the lower temperature body

so, when the body (let's say water) has a higher temperature
than the surrounding 四周, 熱 will 散失 to 四周

If only a half of 電熱器 is in the water,
the other half of 電熱器 will heat up the air in the surrounding
so, the experiment is not correctly carried out.

ask ur teacher

點解你唔問下你個物理老師呢?