This text is meant to accompany class discussions. It is not everything there is to know about uniform circular motion. It is meant as a  prep for class. More detailed notes and examples are given in the class notes, presentations, and demonstrations. See the links below.

Table of Contents

Page 1 Introduction, direction, magnitude, period and frequency
Page 2 Magnitude of velocity, acceleration, and force
Page 3 Deriving the velocity formula
Page 4 The formulas
Click for the questions that go with this reading
Objectives
Students will be able to:

  • Define the period of motion
  • Define the frequency for motion
  • Mathematically relate the period and frequency
  • Convert from RPM’s (revolutions per second) to Hertz
  • Use the definitions of period and frequency to solve word problems
  • Discuss the relationship between centrifugal and centripetal forces.
  • Describe why a person slides to the outside of a curve in a car as observed from inside the car.
  • Discuss what supplies the centripetal forces
  • Correctly write the units equations from memory
  • List the S. I. units associates with each quantity
  • Solve word problems utilizing the formulae and concepts in the unit.
  • Calculate the g’s felt by a rider in an amusement park when
    • He/she is spun in a horizontal circle (e.g. carousel)
    • He/she is spun in a vertical circle (e.g. roller coaster loops, playground swings.)
  • Describe why an irregular shaped roller coaster loop is better than a circular loop.
  • Solve problems based on an automobiles ability to supply a lateral acceleration and “cornering.”
  • Solve problems utilizing formulae and ratio.

worksheet Objectives
worksheet Worksheet Collection
worksheet Some Notes
  Frequency Relationships
Presentation Introduction and two example word problems
Presentation Solving problems by ratios
Notes Formulae you need to memorize
Presentation Selected Worksheet Solutions
Presentation Selected Worksheet Solutions to ratio style problems 63 to71 from the workbook
Activity Circular motion computer activity
ON LINE PRE-TEST #1
Quiz ON LINE PRE-TEST #2
Mastery Assignment
Teacher Resources Teachers, I created and use these animations in class in PowerPoint slide. They drag them in like a picture. They play like movies. Some I reference and use via a web browser.

 

 

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by Tony Wayne ...(If you are a teacher, please feel free to use these resources in your teaching.)