DAY 117
COVID-19: Something to think about: https://www.npr.org/sections/goatsandsoda/2020/03/12/814522489/singapore-wins-praise-for-its-covid-19-strategy-the-u-s-does-not
GOALS: SWBAT...
1. answer thermo related questions and define thermo terms
WARM-UP 117 (4 min)
1. What is entropy?
2. What has more entropy, a liquid or solid?
CLASSWORK
1. Review 117A
What's on the exam? Everything from Day 100-116
What should I study? See above, and below.
https://sites.google.com/site/mralexandersscienceweb/physics/daily-agenda-classwork/day-101
Between the following two documents, you'll find the answers to the 20 Knowledge Inventory questions. You'll also find some extra stuff (example, we didn't use a hand boiler)
LINK 1: https://drive.google.com/file/d/0B-AiPYEb3nFVUVh0MU9HeGZ6Umc
LINK 2: https://docs.google.com/file/d/0B-AiPYEb3nFVbFI4WnlJTTFpR2c
TERMS: Need to review that vocabulary? Here are many of the terms, in flashcard form. https://quizlet.com/636382/thermodynamics-review-flash-cards/
Note: I won't test you on enthalpy
PRACTICE TEST #1: https://www.proprofs.com/quiz-school/story.php?title=unit-test-thermodynamics
Complete the following: 1-3, 10-12, 20 (it's a true false question)
PRACTICE TEST #2: https://quizizz.com/admin/quiz/5907d1ed51a74d14001ec3cf/thermodynamics
Complete the following: 1, 2, 4, 5, 10-14, 17, 18
PRACTICE TEST #3: https://www.ducksters.com/science/quiz/heat_questions.php
Complete #1-10 ( we did this already as a review earlier in the unit)
PRACTICE TEST #4: https://quizizz.com/admin/quiz/569f9e4032b7545d46f035c7
Complete #2-50 (skip 36) ( we did this already as a review earlier in the unit)
HEAT PUMP vs. HEAT ENGINE vs REFRIGERATOR: https://www.quora.com/What-is-the-difference-between-a-refrigerator-and-a-heat-pump-and-a-heat-engine
PHASE CHANGES & COOLING vs WARMING PROCESSES: http://www.theweatherprediction.com/habyhints2/524/
TEMPERATURE SCALES: You should know absolute zero, as well as the boiling/condensing and freezing/melting temperatures of water, in Kelvin and Celsius. You should also know how to convert from K to C, and vise versa.
LEARNING AT HOME (HW)
Exam Thursday. Review Days 100-116
Essential Question: How can energy be transferred?
GOALS: SWBAT...
1. list the requirements for the Rube Goldberg project
2. Assess their current knowledge of simple machines
3. Define "machine", and the six types of simple machines
4. Compare and Contrast the three classes of levers
I'll be checking today's assignment for credit on Monday, at the beginning of class. You should complete today's assignment in class. Make sure Mr. Potkin signs off on your completed work (in your notebook) before the end of class. Also, there's extra credit available. See the HW section for info. Questions? Get permission to use your phone, then message me via the Remind App.
Best,
Mr. Alexander
WARM-UP 117 (4 min)
1. list three concepts you'll need to understand in order to be successful with this project
2. which component of the project am I valuing the most in assessing your learning (aka, in assigning your grade)
3. list two ways you can earn points (aka, show knowledge)
4. list two ways you can lose points (aka, show lack of knowledge)
Project guidelines link: https://docs.google.com/document/d/1NbvMBgjdU3HvjqoQVbV1dkhuEKZ3p5VnwZiVpAGwsKo/edit
CLASSWORK
1. 117A: Simple Machines Knowledge Inventory (15 minutes)
This is just like the knowledge inventory we did for Thermodynamics. We'll do the pre-learning now, and the post-learning at the end of the unit.
Make a four column organizer with the following columns (see below in ORANGE, or day 101 in your notes for an example)
This will take about 1-1.5 pages.
Number, copy, and answer the questions below in your organizer
Rank your current understanding of each concept, from 1 (low) to 10 (high)
Remember, don't look up the terms or questions for the knowledge inventory. We what to know what YOU know.
etc.....
QUESTIONS:
What is the purpose of a Machine?
For what are levers used?
How is the pulley at the top of a flag pole useful when raising a flag up the flag pole (what's a flagpole? Here are photos: LINK)
List five machines which use a wheel (Only two can be transportation-related).
Where would you find an axle?
What is the purpose of an axle?
Draw an inclined plane.
How are inclined planes helpful?
List two purposes of wedges.
How does a screw work?
What is work? (the physics definition, not a job)
What is an energy transformation?
Define Kinetic Energy
Define Potential Energy due to Gravity
Define Elastic Potential Energy.
117B: The Six Simple Machines (15 minutes)
Below, I've provided two links to informational pages on simple machines. Use both to improve your understanding of simple machines.
1. Define the term, "machine"
2. Create a graphic organizer like the one below. Use it to define each of the six simple machines
Great definitions of five of the six simple machines. https://www.explainthatstuff.com/toolsmachines.html
Good for examples and alternate definitions of machines. Includes a good definition of 'inclined plane' that isn't in the first link: http://idahoptv.org/sciencetrek/topics/simple_machines/facts.cfm
117C: Venn Diagram: Three Classes of Levers (10 minutes)
In case you're wondering what "class" means, a synonym for class is "type", or "kind of". So, "Three Types of Levers".
Use the resource linked below to read about levers, and to create a three-ring Venn Diagram comparing and contrasting the three classes of levers.
To fill in your diagram, think about definitions, examples of each lever class, and functions of each class.
LINK: https://www.explainthatstuff.com/toolsmachines.html (the notes on lever classes are titled: "Types of lever", and are approximately 1/4 of the way down the page)
LEARNING AT HOME (HW)
1. Complete any incomplete classwork from today
2. Complete any late assignments (states of matter lab)
3. EXTRA CREDIT OPPORTUNITY:
Want some? Our Rube Goldberg project is materials heavy, so, if you'd like to donate some common materials to class, I will reward your support with points.
Things which are larger, or more expensive (boxes, glue sticks, springs) will get more points per item than something small and cheap (10 straws, for example)
Here's what we need, preferably on Monday (03/18/19):
Moving size (approx 18x12x12" or larger) boxes
popsicle sticks (new, not used - thanks)
straws (don't go steal all the straws from McDonalds)
springs
hot glue sticks (like these: https://www.amazon.com/Diameter-Compatible-Industrial-Adhesion-Quickly/dp/B07GTJ88KT/ref=sr_1_7?keywords=hot+glue+sticks&qid=1552582849&s=gateway&sr=8-7)
used matchbox size cars/trucks that roll well (they can be beat up cosmetically)
toilet paper or paper towel tubes
gear sets and or motors (like these: LINK)
string, yarn, twine