Transverse waves are the easiest to picture, because syou can visualize and often see material moving. Essential knowledge: Transverse, Longitudinal, Torsional and Love Waves. Continue reading 4 Kinds of Waves
Monthly Archives: January 2016
Gases and their properties
Unit 9: Introduction, math pre-requiites, videos for 3 gas laws. Introduction to Kinetic – Molecular Theory. Continue reading Gases and their properties
Converting F to C to K
Warm Up: {From memory} Using the formulas you learned in the lesson “3 Temperature Scales”, convert room temperature (72 F) to Celsius and to Kelvin. If you don’t remember the formula, draw a thermometer showing F and C degrees for the freezing point and boiling points of water, then compare these ranges to get the conversion factor.
Homework: Complete this worksheet temperature_conversion_wkst
Some important temperatures:
1] The coldest day in my life…..
I was living in Chicago and one January the temperature was -24F that’s right! 24 degrees below zero! Brrrrrr…………
Convert this to Celcius and to Kelvin.
2] What is Walt Disney’s body temperature?
(hint: Liquid Nitrogen boils at 77K, convert to Fahrenheit)
3] Mercury freezes at- 38.8 C. Convert to Fahrenheit.
At what temperature are Celsius and Fahrenheit degrees equal? (hint: solve the conversion formula for F/C = 1)
The Third Law
It is impossible for any process, no matter how idealized, to reduce the entropy of a system to its absolute-zero value in a finite number of operations.
The Second Law
The Second Law of Thermodynamics: Entropy
Any spontaneous process increases the DISORDER of the universe!
We call this ENTROPY.
Warm up: Individual work. In your notebook, describe a example in your own world where you see evidence of the trend towards disorder.
Entropy – The Good Stuff
Formula for entropy: S
S = Q / T
reference: Thermodynamic efficiency
Next lesson: car engines and the Otto cycle
The First Law
This lesson states th First Law of Thermodynamics, provides the formula, and discusses Joules’ experiment. Continue reading The First Law
The Zeroth Law
needs content from ppt
3 Temperature Scales
There are 3 temperature scales in wide use today, these are Fahrenheit, Celcius, and Kelvin. Continue reading 3 Temperature Scales
Internal vs external energy
Internal energy of a system is energy contained within the system if the system is isolated Continue reading Internal vs external energy
Balancing Chemical Reactions – Intro
Reading quiz Prentice Hall Chemistry pg 320-328
For 5 points:
Given the equation __A + __B –> __C + __D
1] Which letters represent the reactants
2] Which letters represent the products
3] Define coefficients
4] for a reaction where G, and H are reactants and L and M are products, write a skeleton equation
5] write the balanced chemical equation for Hydrogen + Oxygen yields Water
Physics Unit 11: Thermodynamics – Overview
Thermodynamics – Overview
This overview lists the essential learning targets for the lesson and discusses the underlying concepts of internal and external energy, heat and temperature. Continue reading Physics Unit 11: Thermodynamics – Overview