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Inclined Planes and Work Day 2

o n e. Objective: To examine data in order to find out how the length of an inclined plane affects the amount of work completed Core Question: How do inclined planes affect work? Drill: Compare your homework answers with your neighbor.

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Inclined Planes and Work Day 2

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  1. one • Objective: To examine data in order to find out how the length of an inclined plane affects the amount of work completed • Core Question: How do inclined planes affect work? • Drill: • Compare your homework answers with your neighbor. • Get an Activity Sheet from the SET. (And quiz guide) • Read the objective and the Scenario. Inclined Planes and WorkDay 2 SK-15A

  2. one Homework Check Lab Analysis Inclined Planes and WorkDay 2 SK-15A

  3. one • Patterns • a. As the height of the incline increased, the force applied increased. • b. As the height of the incline increased, the amount of work completed increased. • c. The length of the plane remained constant. Inclined Planes and WorkDay 2 SK-15A

  4. one 2. Reflecting on the Hypothesis a. Statement of Validity b. Statement of Hypothesis c. Explanation w/Evidence Inclined Planes and WorkDay 2 SK-15A

  5. one 3. Reliable Data a. Repeated Trials b. Elimination of Outliers c. Other??? Inclined Planes and WorkDay 2 SK-15A

  6. one How will the length of an inclined plane affect the amount of work completed? Inclined Planes and WorkDay 2 SK-15A

  7. one Scenario You have just finished exploring how the height of an inclined plane affects the amount of work completed. Another group of students did a different investigation. They explored how the length of an inclined plane affects the amount of work completed. Their data has been collected in the chart, “The Effect of the Length of an Inclined Plane on the Amount of Work Completed.” Figure 1 shows the set up of the class’ investigation. Note that the height of the inclined plane remains constant. Inclined Planes and WorkDay 2 SK-15A

  8. one The Effect of the Length of an Inclined Plane on the Amount of Work Completed Inclined Planes and WorkDay 2 SK-15A

  9. one • Small Group Discussion • What do you notice about the work completed? Why does this occur? • The data in the investigation above is theoretical. How would it be different in reality? Why? Inclined Planes and WorkDay 2 SK-15A

  10. one Our Fair Friend FRICTION Input Work: The work put into the machine Output Work: The work the machine does Input work is always greater than output work due to friction. Inclined Planes and WorkDay 2 SK-15A

  11. one Homework Analysis Ditto (to be collected) Inclined Planes and WorkDay 2 SK-15A

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