Page 14 - E-Science Prim.6 2024-2025 U2_Handy

Measuring
unit of heat

is calori

After mixing: After mixing:
Molecules of hotter Molecules of cooler
object become slower object become faster

• Heat transfers when there is a temperature difference between

2 objects and it flows from hotter object to cooler one until both reach

the same temperature.

“Thermal Equilibrium” (No more flow of thermal energy)

The final temperature of both objects ˜ their average temperature
? their average temperature

as there is some thermal energy transfers to the air.

The temperature The final temperature The temperature
of hot object is between of cold object

If you hit a 59
metal several

times, it
becomes
warmer.

First Term