Vandegrift High School | 9500 McNeil Drive, Austin, TX | T: 512 570 2300 |  Andrew.Perrone@leanderisd.org

Calendar (2018-2019)

8/16-8/17

 

  • Introduction to the class​
  • Begin a laboratory analysis of a first-class lever

 

8/20 - 8/24

 

Unit 1.1 Mechanisms

 

  • Complete analysis of first-class lever
  • Class lecture on ideal and actual mechanical advantage and efficiency
  • Use this ASPIRE website to gain familiarity with your assigned machine (each group will be assigned one machine). Also use, as needed, any of the relevant documents or websites linked on the 1.1 Mechanisms webpage on this site.
  • Share your findings on a padlet. Describe how your machine works, how to maximize its mechanical advantage, various real-world examples of it in use, and describe whether the machine is ever used in such a way that its mechanical advantage is less than or equal to 1.0.
  • Access the padlet here: https://padlet.com/andrew_perrone/pki6b2ho394m

8/27 - 8/31

 

Unit 1.1 Mechanisms

 

  • Practice calculating AMA, IMA and efficiency for various simple machines
  • Quiz over levers
  • Discuss torque (moment) in the context of the simple machines
  • Begin building the various machines for purposes of measuring their various advantages and efficiencies

9/4 -9/7

 

Unit 1.1 Mechanisms

 

9/10 -9/14

 

Unit 1.1 Mechanisms

 

  • Discuss how gears manipulate torque and angular speed
  • Motors and Gears handout (answer key)
  • Car transmission activity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9/17 -9/21

 

Unit 1.1 Mechanisms

 

  • Discuss cams and the workings of an internal combustion engine (including its camshaft)
  • Discuss compound gears and sprocket and chain drives
  • Build a compound gear train and answer questions about it

9/24 -9/28

 

Unit 1.1 Mechanisms

 

  • Practice solving word problems involving gears and chain and sprockets (answer key)
  • Read about different types of gears; take notes in your notebook
  • Quiz on gears, including a car's transmission, and chain and sprockets
  • Activity 1.1.6 Compound Machine Design Challenge
    • Each member of the team must submit a final report
    • Each report must include a (rough) preliminary sketch, a final sketch, calculations as laid out in the activity packet, and answers to the conclusion questions
    • The machine must lift 500 g by 6 inches or, with approval, you may substitute a different goal
    • The machine must have an ideal mechanical advantage of >1
    • The machine must include at least 2 non-gear simple machines and either a gear train or chain and sprocket

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10/1 -10/5

 

Unit 1.1 Mechanisms

 

  • continue working on Activity 1.1.6 Compound Machine Design Challenge

10/11 -10/12

 

Unit 1.1 Mechanisms

 

10/15 -10/19

 

Unit 1.2 Energy Sources

 

  • research the basic principles of energy and electricity here by completing this worksheet
  • read about electricity usage in the US here
  • make a Google Slides presentation that addresses these questions, pertaining to our sources of renewable and alternative energy

10/22 -10/26

 

Unit 1.2 Energy Sources

 

  • define voltage, current, resistance, and power
  • discuss the operation of an electric circuit in terms of energy
  • build electric circuits and measure voltage and current; homework - read pp.10-20 in yellow circuits booklet

10/29 -11/1

 

Unit 1.2 Energy Sources

 

  • calculate voltage drop, current, and power for resistors in series, parallel and combination circuits
  • discuss and play with Van de Graaff machine

11/5 -11/9

 

Unit 1.2 Energy Sources

 

  • calculate voltage drop, current, and power for resistors in series, parallel and combination circuits ... more practice
  • discuss how energy is metered and sold
  • quiz over circuits; circuits homework due for a grade
  • build circuits using breadboards, resistors and LEDs (activity)

11/12 -11/16

 

Unit 1.2 Energy Sources

 

  • build a winch (instructions -- you're only doing the first part of this packet) and measure its efficiency in lifting a load

11/26 -11/30

 

Unit 1.3 Energy Applications

 

  • discuss the workings of a photovoltaic (solar) cell and a hydrogen fuel cell (handout), along with the pros and cons of using each to produce electricity
  • discuss thermal insulation, focusing on R-value, U-value and thermal conductivity (handout for #10 use website)
  • discuss thermal energy, heat and specific heat capacity (worksheet)
  • thermodynamics PowerPoint (we only covered a handful of these slides)

12/3 -12/7

 

Unit 1.3 Energy Applications

 

  • Tuesday: quiz over material from previous week
  • Tuesday: after the quiz, figure out this worksheet using this PowerPoint for help

​Unit 2.1 Statics

  • review forces and moments; discuss static equilibrium and Newton's 2nd Law of motion
  • define center of mass

12/10 -12/14

 

​Unit 2.1 Statics

 

12/17 -12/21

 

The midterm is Thursday, Dec. 20th.

 

 

1/8 -1/11

 

​Unit 2.1 Statics

 

  • discuss the structure of a truss bridge and the purpose of completing an analysis of the tension and compression forces in the beams of a truss
  • perform a mathematical analysis of a truss

1/14-1/18

 

​Unit 2.1 Statics

 

  • practice truss analysis
  • quiz over torque, the properties of a truss, and truss analysis
  • begin construction of a file folder truss bridge

1/22-1/25

 

​Unit 2.1 Statics

 

  • work on truss bridges

1/28-2/1

 

​Unit 2.1 Statics

 

  • continue working on truss bridges

2/4-2/8

 

​Unit 2.1 Statics

 

  • finish truss bridges
  • Beam Deflection lab

Unit 2.3 Material Testing

 

  • define and calculate stress, strain and modulus of elasticity (watch the videos on the Material Testing page of this website)

2/11-2/15

 

Unit 2.3 Material Testing

 

  • practice calculating stress, strain and modulus of elasticity (answer key) -- complete this packet, including #7; read about modulus of resilience here or watch my 3rd video
  • quiz over Material Testing

 

2/19-2/22

 

Unit 2.2 Material Properties

 

 

2/25-3/1

 

Unit 2.2 Material Properties

 

  • enter laptop number here
  • [Install ROBOTC software]
  • discuss material properties and methods of recycling
  • read this webpage

​Unit 3.1 Machine Control

 

3/4-3/8

 

​Unit 3.1 Machine Control

 

  • upload a completed Activity 3.1.1 to this Google folder
  • upload completed programs (based on the handout) to this Google folder
  • include your name in the file name
  • for the programs, label them and place them one after the other in a Google doc
  • you are not allowed to copy the work of a classmate; each student must submit his or her own work; simply copying another's work is academic dishonesty and is considered a violation of the Honor Code
  • don't share your file with me; actually put a copy in the folder

  • continue to Activity 3.1.4 (do at least one of the Part 4: Additional Practice); copy all programs into a Google doc, as you did with the previous assignment; place a copy of the Google doc here
  • review this presentation for help with Activity 3.1.4
  • Interview an Engineer assignment given; Parts 1 and 2 are due March 29 (not the date printed on this online document)

 

3/11-3/14

 

​Unit 3.1 Machine Control

 

 

3/25-3/29

 

​Unit 3.1 Machine Control

 

  • complete Activity 3.1.5 and 3.1.6
  • introduce Machine Control Project
  • turn in Interview an Engineer assignment (parts 1 and 2) in class; these assignments should be typed and printed out

 

4/1-4/5

 

​Unit 3.1 Machine Control

 

  • work on Machine Control Project

 

4/8-4/12

 

​Unit 3.1 Machine Control

 

  • work on Machine Control Project

 

4/15-4/18

 

​Unit 3.1 Machine Control

 

  • complete and turn in Machine Control Project

Unit 3.2 Fluid Power

  • Notes on pressure, the ideal gas law, and Pascal's law

 

4/23-4/26

 

Unit 3.2 Fluid Power

 

  • practice using Boyle's Law and Charles' Law; discuss absolute temperature
  • watch part of Modern Marvels - Hydraulics
  • notes on a hydraulic press; activity: design a press to lift 5000 lbs

 

4/29-5/3

 

Unit 3.2 Fluid Power

 

  • review the gas laws and how hydraulic and pneumatic systems operate
  • quiz review - answer key
  • quiz over fluid power

 

5/6-5/10

 

Unit 3.2 Fluid Power

 

  • build a hydraulic arm from a kit

 

5/13-5/17

 

Unit 4.2 Kinematics

 

  • review kinematics (mostly projectile motion)
  • review for the EOC

The EOC Exam will be held on Wednesday, May 22nd, during class.

 

I have exam results as % correct out of total points. The grades will not be categorized as "basic", "proficient" and "advanced" until late summer. I have fit you into groups of similar performance and assigned a grade for each group, which includes a large curve.

Engineering with Perrone
Engineering Science • VHS