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

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

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

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

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

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)

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  

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

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

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