1. Warm Up #2
How are heat, temperature, and thermal energy related?

2. Lesson 1: Thermal Energy, Temperature, and Heat
Ch. 13 Thermal Energy
Lesson 1: Thermal Energy, Temperature, and Heat

3. Essential Questions How are temperature and kinetic energy related?
How do heat and thermal energy differ?

4. Thermal Energy ACTIVITY
Touch your palms to the sides of your face.
Remove hands and quickly rub them together.
Touch your face again.
What do you feel?
Why do you feel that?

5. Kinetic and Potential Energy Review
What is energy?
What is potential energy?
What is kinetic energy?
What is gravitational potential energy?
What is mechanical energy?

6. What is thermal energy?
The faster particles move, the more kinetic energy they have
The greater the average distance between particles, the greater the potential energy of the particles
Thermal energy – the sum of the kinetic energy and the potential energy of the particles that make up a material

7. What is temperature?
Temperature – represents the average kinetic energy of the particles that make up a material
The greater the average kinetic energy of particles, the greater the temperature
If the air temperature outside is high, what do you know about the kinetic energy of the air particles?
What happens to the thermal energy in an object when you increase the object’s temperature?
Can you increase an object’s temperature without increasing its thermal energy? Explain.

8. Particle Motion ACTIVITY
Fill beaker with hot water
Fill another with cold water
Place 2 drops of red food coloring into each beaker
What do you notice?
Why do you think your observations happened?

9. Measuring temperature

10. What is heat?
Heat – the movement of thermal energy from a warmer object to a cooler object
All objects have thermal energy, heat is when thermal energy is transferred from one object to another object
Rate at which heating occurs depends on the difference in temperatures between the objects
How will thermal energy move:
You have a glass of juice at 5°C and
Air at 35°C.

11. Where would it go? Draw arrows indicating where heat is going.
What is happening in terms of heat and thermal energy?

12. Review Differentiate between thermal energy and heat.
How could you increase the kinetic thermal energy of a liquid?
What is the temperature on the thermometer?