Reflection: Grappling with Complexity Electric Potential Energy - Day 2 - Section 1: Warmup

The final part of the warmup is actually quite difficult as students need to make a few intermediate connections before addressing the presented question. First, students need to note that the ball's kinetic energy changes from the initial value of .457 joules to zero when it comes to rest. Then, they need to recognize that that change in energy happens because friction "works on" the ball. Hence, the work done by friction is .457 joules. Furthermore, students need to recognize that they can use their sketch (made in the previous problem) to model a rectangle whose area can be expressed as force times distance, where the distance is the total distance the ball rolls. This then leads to the ability to calculate how far the ball rolls; all in all a bit much for students to infer before settling the question.

Assigning a Too-Novel Problem
Grappling with Complexity: Assigning a Too-Novel Problem

Electric Potential Energy - Day 2

Unit 2: Electrostatics
Lesson 14 of 15

Big Idea: Students, like scientists, need to adjust their models as new information becomes available.

Print Lesson
Standards:
Subject(s):
80 minutes

Timothy Brennan

Similar Lessons

Introduction to Electrostatics, Day 1
High School Physics » Electrostatics
Big Idea: Students complete a reading activity to learn and teach each other about electrostatics.
Favorites(0)
Resources(19)
Park Ridge, IL
Environment: Suburban

Uncorking Centripetal Force
High School Physics » Rotational Motion - Part I
Big Idea: Students swing a cork above their heads to see centripetal force in action.
Favorites(0)
Resources(18)
Scottsdale, AZ
Environment: Suburban

Introducing Gravitational Field Strength
High School Physics » Lessons from Galileo
Big Idea: Gravitational field strength is directly proportional to a celestial body's mass and inversely proportional to a celestial body's radius squared.
Favorites(1)
Resources(16)
New York, NY
Environment: Urban