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