Embedded Files
Formula Flowchart.pdfWork Formula Flowchart.pdfFormula Discussion to Start the Unit
Formula Discussion to Start the Unit
This unit covers the topics of work, power, and impulse as they apply to motion and force. Although these concepts are relatively simple in terms of formulas, they are often made more complex by substitutions for accelerations, times and distances. This flowchart was a class discussion of this complexity.
Work = Force x Distance (W = Fd)
Power = Work / Time (P = W / t)
Impulse = Force x Time (J = Ft)
Variation on Work
Variation on Work
Work can vary greatly based on the DIRECTION associated with the DISTANCE. In order for work to occur, distance and direction (or some component of distance and direction) must be parallel.
Graphing Work and Power
Graphing Work and Power
Consider the lifts being shown in the videos to the right. What would the Force-Distance graphs look like for these lifts?
The first 80% Quiz for Unit 6 will occur after the discussion and practice involving work. The quiz will include analyzing work graphs and calculating problems associated with work and power.
The first 80% Quiz for Unit 6 will occur after the discussion and practice involving work. The quiz will include analyzing work graphs and calculating problems associated with work and power.
Impulse Graphs
Impulse Graphs
Work and impulse are both graph quantities in Physics. In each case, the measured quantity is the "integral" or area under the curve of the graph. Work is the area under the curve for a Force-Distance graph. Impulse is the area under the curve for a Force-Time graph. Power is typically not a graphed quantity. If it was graphed, since it is a rate (a "per unit time" quantity), it would have to be the slope of a Work-Time graph.
Skeptical Questions In Science
Skeptical Questions In Science
The skeptical question topic for this unit involves concussions. Skeptical questions are thoughtful "Why-based" questions which address biases in scientific material. This type of question is not seeking scientific facts.
The articles associated with this topic are listed below:
The Barbie Bungee Lab
The Barbie Bungee Lab
One of the most enjoyed and remembered labs of all labs in Physics is the "Rock Climbing Rope Impulse Lab", otherwise known as the "Barbie Bungee Lab". The lab explores the concept of impulse as it applies to the support devices used in rock climbing, arborist work, and bungee jumping. The object of the lab is to compare the impulse forces generated in static and dynamic ropes and bungees.
The Barbie Bungee Full Lab Report
The following documents are part of the Barbie Bungee Lab. In addition to the typical Science Writing Heuristic lab report, the "Force Measurement In Rock Climbing Ropes" article questions must be submitted. The easiest way to submit this question is as a full-page photo at the end of your typical lab report submission - just add it after Section 5.
BarbieBungeeLabResearchArticle.pdfRock Climbing Rope Article
BarbieBungeeResearchArticleQuestions.pdfArticle Questions
Additional Climbing Rope and Carabiner Information
RockGearRated - Climbing Ropes.pdfTRUTH...
TRUTH...
"Learning-2-Learn" and Retrieval Assignments (Required before taking the unit test!) and Unit Calibration Test
"Learning-2-Learn" and Retrieval Assignments (Required before taking the unit test!) and Unit Calibration Test
Intro Lab (Exercise Bands and Work)
Practice (Work and Power Calculations, Concussion Article Summaries)
80% Quiz #1
80% Quiz #2
Quiz Reflections
Calibration Answers.pdfCalibration Test Answers
Calibration Test Answers
Answers are not provided for sections #2 and #3 since those answers can vary. If you have questions, check with your teacher.
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