Vocab
Tiny particles that make up all things
Molecules
Pot A: 4 liters, 70 degrees
Pot B: 1 liter, 70 degress
Which pot has more thermal energy?
Pot A
How do you find the thermal energy (average)?
Add all the molecules up and divide that by how many molecules there are
When energy moves from faster-moving molecules to slower-moving molecules.
Energy Transfer
Object A-80 degrees
Object B-40 degrees
Which object has faster moving molecules in the start?
Object A
A stable state where all molecules in a system move at about the same speed.
Equilibrium
Object A-80 degrees
Object B-40 degrees
Which direction will energy transfer?
From Object A to Object B
The energy of motion in particles
Kinetic Energy
Object A-80 degrees
Object B-40 degrees
What will happen to the temperatures after they have been touching for a long time?
They will become equal. (They will reach equilibrium)
The total kinetic energy of all molecules in a thing.
Thermal Energy
Object A-80 degrees
Object B-40 degrees
Why do they reach the same temperature?
The molecules transfer energy until the kinetic energy is the same and they reach equilibrium.