1. The Particle Model, Temperature and Thermal Energy
Topic 3 Heat & Temp
The Particle Model, Temperature and Thermal Energy

2. The Particle Model
A scientific description of different features of particles.

3. Particle model Three of the most important ideas of the model are:
All substances are made of tiny particles
The particles are always in motion
The particles have spaces between them

4. Temperature and the Particle Model
The motion of particles increases when the temperature increases and decreases when the temperature decreases
Temperature indicates the average speed of particle motion in a substance

6. Energy Measure of something's ability to do work
Energy can be transferred between things
Some things are designed to release and transfer thermal energy
Hot Air Balloon, Hot Tub, Stove

7. Energy Changes Happen When There Is A Difference In Energy.
Energy is Always Transferred In The Same Direction (from a high to low energy source)

9. Thermal Energy and Temperature Change
Heating
Heating anything increases the total energy of all of its particles
The average energy of the particles (temp of the substance) may increase a little or a lot

10. Cooling
When ice is put in warm water, it absorbs thermal energy as it melts
With less energy, the average motion of the particles in the water slows down
Temperature Change Depends On The Amount of Material, As Well As On The Change in Thermal Energy

11. What Energy Is and Is Not
Energy Is Not
A Substance
It Cannot Be Weighed
It Does Not Take Up Space
Energy Is
A Property or Quality of an Object or Substance that Gives the Ability to Move, Do Work or Cause Changes

12. Law of the Conservation of Energy
Energy Cannot Be Created or Destroyed. It Can Only Be Transformed From One Type To Another Or Passed From One Object To Another