1. Heat & Temperature NOT the same thing

2. Heat (Thermal Energy) Heat (Thermal Energy) is produced from the movement of the particles in a substance. Thermal energy depends on 2 factors: -# of particles -how fast they move (temperature) Solids Have a lower thermal energy b/c their particles don’t move very much Gases Have a higher thermal energy b/c their particles move a lot

3. The effect of # of particles on Thermal Energy/Heat Which will have more thermal energy? a)Many slow moving particles b)Few slow moving particles Answer: A Since they’re both slow moving, more slow moving particles will have more thermal energy (heat) than fewer particles would.

4. Temperature Temperature tells you how fast the particles are moving. At higher temperatures, particles are moving fast Particles move slower at lower temperatures So, Temperature is a measure of heat. Units (°C) solid gas liquid

5. The effect of temperature on Thermal Energy/Heat What will have more thermal energy/heat? a)Particles at 15°C b)Particles at 65°C Answer: B Since particles move faster at higher temperatures, the particles at 65° will have more thermal energy (heat).

6. Heat Heat can be transferred from one area to another The transfer happens from a warm area to a colder area

7. Does an ice cube cool your drink or does the drink warm the ice cube?