DAY 111
Essential Question: How does thermal energy flow?
GOALS: SWBAT...
1. Define specific heat, heat of fusion, & heat of vaporization
2. Understand and use the heat transfer equation
3. Use specific heat, heat of fusion, & heat of vaporization to solve problems
WARM-UP 111 (5 min)
States of Matter Simulation LINK
1. For your Lab 5 - States of Matter Simulation, what can you say about the amount of energy (the amount of time you held the flame on) required to change the state of each substance from a solid to a liquid.
2. For Lab 5, compare the amount of energy required to change from solid to liquid with the amount of energy required to change from liquid to gas
3. The amount of energy required to increase the temperature of different substances is indeed, different. The heat required to change the (energy) temp of a substance is given by the term "specific heat." Define specific heat in your notes.
CLASSWORK
111A: Specific Heat Notes
- Think-Pair-Share
- On a sunny day, would the sand of the beach and the water of the ocean change temperature at the same rate?
- The answer is No, but why? What's different about the beach and the ocean that leads to this temperature change imbalance?
- sidenote for later: what is glass made of?
- Specific Heat
- definition: The amount of energy that must be added to the material to raise the temperature of one kilogram by one degree Kelvin.
- symbol: C
- units: J/(kg*K) or in words.... joule divided by the quantity (kilogram multiplied by degrees in Kelvin)
- examples
111B: Heat Transfer Equation
- example problem
- practice problems
Exit Questions
1. Do all substances require the same amount of energy to raise their temperature by one degree?
2. Of the substances we looked at today, which requires the most energy to increase it's temperature by one degree?
Learning at Home/HW
Watch the following on specific heat, the latent heat of fusion, and latent heat of vaporization
Essential Question: What is Heat?
GOALS: SWBAT...
1. understand the arrangement, motion, and energy of molecules in each phase
2. describe how molecules in a solid, liquid, and gas compare to each other
3. state how temp relates to the KE of molecules
WARM-UP 111 (4 min)
There's a pot of boiling water on the hot plate on my desk
1. As the hot plate adds thermal energy, what's the highest temperature the liquid water will achieve?
2. Once the liquid begins boiling, will the temperature continue changing?
CLASSWORK
110B continued: States of Matter Simulation Lab (15min)
Make a copy of the Lab, title it "Lab 5 - States of Matter Simulation Lab - Your Name - Period X" and share it with me at josh.alexander@lausd.net
Finish page 1. Use "Insert -> drawing -> +new" and then the shapes tools to make your drawings
Lab Document: LINK1
Simulation: LINK2