Physics
Chapter 8: 103 Assignment
Homework
Physics 8: 1-3 Angular Motion and Acceleration
Homework
- Reading Preparation
- Key Equations
- WebLecture
- Study Activity
- Chat Preparation Activities
- Chapter Quiz
- Lab Work
Reading Preparation
Text Reading: Giancoli, Physics - Principles with Applications, Chapter 8: 1-3
Study Points
- 8.1: We can measure how far something rotates in degrees, rotations, or radians. 1 rotation = 360 degrees = 2π radians. Radian measurement allows us to easily compute the linear distance traveled by a point a distance r from the center of rotation. We can then calculate angular distance in radians, angular velocity in radians per time, and angular acceleration in radians per time2 and relate these directly to linear distance, velocity, and acceleration. The pertinent equations are given in the table below.
- 8.2: We can use the same calculations to derive angular equivalents for the four equations we have been using to describe the relationships between displacement, starting and final velocities, acceleration, and time.
- 8.3: We can now use the resulting equations to talk about the motion of objects that roll, rather than simply move in a circle. Just as we did with linear motion, we'll look first at kinematics and how angular displacement, velocity, and acceleration are related, then take up the application to rotational dynamics, or torque forces.
Key Equations
| Linear (from chapter 2) | Angular |
|---|---|
| v = v0 + at | ω = ω0 + αt |
| x = v0t + ½at2 | θ = ω0t + ½αt2 |
| v2 = v02 + 2ax | ω2 = ω02 + 2αθ |
| vave = ½(v + v0) | ωave = ½(ω + ω0) |
Web Lecture
Read the following weblecture before chat: Inertia, Acceleration, and Force
Study Activity
Chat Preparation Activities
- Forum question: The Moodle forum for the session will assign a specific study question for you to prepare for chat. You need to read this question and post your answer before chat starts for this session.
- Mastery Exercise: The Moodle Mastery exercise for the chapter will contain sections related to our chat topic. Try to complete these before the chat starts, so that you can ask questions.
Chapter Quiz
- The chapter quiz is not yet due.
Lab Work
If you want lab credit for this course, you must complete at least 18 labs; you may complete more if you are preparing for the AP exam.. One or more lab exercises are posted for each chapter as part of the homework assignment. We will be reviewing lab work at regular intervals, so do not get behind!
- Lab Instructions: Torsion Pendulum: Angular Momentum
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