1. Temperature, Thermal Energy & Heat
You have already began the study cycle by
“Previewing” the material and “Attending” class

2. Thermal Energy
Depends on two factors
Mass
Temperature

3. Mass
What has greater thermal energy? A match or this ice sculpture?

4. Mass
What has greater thermal energy? The ice sculpture because it has more particles within it.

5. Temperature Things we have to remember:
Everything is made of particles
Particles have a certain amount of motion
 less motion - solid, more motion – liquid, greatest amount of motion – gas
Because particles are moving they have Kinetic Energy (KE)
Which have the greatest KE?

6. KE and Temperature How are temperature and KE related?
As the KE increases the temperature ______________________.
As the KE decreases the temperature ______________________.

7. KE and Temperature How are temperature and KE related?
As the KE increases the temperature INCREASES.
As the KE decreases the temperature DECREASES.
Temperature and KE have a direct relationship

8. Direct relation of KE and Temp
“Temperature is a measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object, which is a type of energy associated with motion.”
Summarize the above statement
definition-lesson-quiz.html

9. Transfer of Thermal Energy AKA Heat
Room Temp 23 degrees Celsius (approx 73 degrees Fahrenheit)
Chilled Butter 2 degrees Celsius (approx 35 degrees Fahrenheit)
So which particles are moving faster? The butter or the air?

10. Transfer of Thermal Energy AKA Heat
The transfer of thermal energy is known as HEAT. Heat is transferred in one direction from objects Hot  Cold We can also say More energy to less energy

11. Transfer of Thermal Energy AKA Heat
The transfer of thermal energy is known as HEAT. Heat is transferred in one direction from objects Hot  Cold We can also say More energy to less energy
Heat will be transferred until both objects are the same temperature

12. Transfer of Thermal Energy AKA Heat
Room Temp 23 degrees Celsius (approx 73 degrees Fahrenheit)
Chilled Butter 2 degrees Celsius (approx 35 degrees Fahrenheit)
So which particles are moving faster? The butter or the air?
The air particles are moving faster and bump into the the slow moving butter particles
The air particles energy is transferred to the slow moving butter particles
As the butter particles gain energy it increases in temperature

13. So when do particles have NO Kinetic Energy?
Particles have no KE at absolute zero
0 degrees Kelvin
-273 degrees Celsius
-459 degrees Fahrenheit
NO PARTICLE MOVEMENT

14. Study Cycle
Review
Study
Test