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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 (click here.)
Click for the questions that go with this reading
Table of Contents
Introduction Chapter Pre-Reading
Displacement and Constant Velocity

Modeling Motion with the Kinematics Formulas (Deriving the equations)

Solving Word Problems in Kinematics (Includes example video.)

g's ...Another Unit of Acceleration


"Drag Race Style" and Segmented Problems (Includes example videos of each.)

6 Kinematics and Free Fall Motion
8 How your work gets graded for communication



Students will be able to:


Describe the basic VECTOR motion concepts of;

  • displacement, velocity, acceleration

Identify a number as being either displacement, velocity, acceleration, jerk or time based solely on its units.

3   List the values given in a word problem.

These values will be listed and identified as either...

    • initial position
    • final position
    • initial velocity
    • final velocity
    • average velocity
    • acceleration
    • time
  • Also list the “implied” givens. (Implied from the context of the problem and/or the word choice such as the use “stop, drop, rest, and freefall.”

From memory, the following formulas will need to listed and used when solving word problems.

5   List what the variables of xO, x, vO, v, vavg, a and t stand for
6   Write the proper S.I. units for the variables listed in the previous objective.
7   Solve word problems while demonstrating proper solution-communication techniques. This includes but is not limited to:
  • List all the variables in a problem with units
  • Show the formula(s) used to solve the problem with only variables
  • Show the formula(s) used to solve the problem with numbers AND units
  • Show any necessary math
  • Show the answer with proper units
8   Solve word problems are involve multiple accelerations. (segmented problems).
9   Solve vertical free fall problems.
10   Be able to convert between accelerations in m/s2 and g’s.



The test for this unit will be all problem solving. The Problems will be similar to the ones we've seen in class. The problems can be categorized into types,

  • The simple problem that needs one equations to solve.
  • The problem that is in freefall where the acceleration is "g" but the problem does not explicitly tell you a = 9.80 m/s2.
  • A problem where you will need convert g"s into m/s2 in order to solve it.
  • A "race style" problem.
  • A "segmented" problem where you are given multiple accelerations in the description.

Make sure you know how to solve a quadratic equation for the test. (You can use or the "PlySmlt2" on most TI-84 graphing calculators.)

Extra Resources
Formulas for the daily formula quiz.
Animation to accompany problem #35 from the worksheets
Motion on a flat track: online simulator
Motion on a inclined track: online simulator
Risky Kinematics
1 Vector Basics -Part 1 (Part 2 will be covered in a later unit.
02 Presentation: Getting started with problem solving
03.5 Presentation: g's

04 Presentation: Kinematics Problem Solving "Race" problems w/math help towards the end.
04B Example: Kinematics Problem Solving Steps for "Race" Problems

05 Presentation: Kinematics Problem Solving Steps for "Segmented" Problems
Some notes Solve single unit conversion.
Solve fractional unit conversion.
Solve conversions where the units are raised to a power.
This is the same video note that is embedded below.
Conversion Fact Sheet
Answers to from 31 to 37 and 41 to 45 from the Dimensional Analysis Worksheet
Worksheets are in the student workbook
Selected solutions
Solutions to the workbook problems
Online Review Quiz
Unit - Variable Quiz
g conversions
segmented problems solving clues
listing the givens
Mastery Assignment: This must be completed and shown to the teacher before getting the right to take the mastery test.
Prob Link to see the video solution on YouTube
21c 21c
23 23
25 25
27 27
29 29
31 31a,b
31c 31c

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

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