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Announcements:
· Pass back quiz 4 · Quiz Thursday on Ch. 5 · HW Ch. 5: 13, 17, 19, 23, 27, 44 · Ignore drag Go over Ch. 5...equilbirium, dynamic problems, tension, friction, centripetal force Work problem in class |

Announcements:
· Return Force Table Labs · Quiz Tuesday (problems similar to HW) · HW Ch. 4: 4,5,7,9,15,17,19,24 Overview of Ch. 4 and discussion questions Q 4.1-4.4, and 4.7 Pulley Lab |

Announcements:
· Return Q3 · Test Thursday Review for test |

Announcements:
· Fall Equinox · Take Q3 · Tuesday Review for Test; Possibly start Ch. 4 · Ch. 3 HW: 21, 23, 27, 29, 31, 53 Questions on Ch. 3 Quiz Air Track lab: § Level air track § Inclined: v for different d § Inclined: measure g |

Announcements:
· Return Q2 · Return L1 · Q3 on Thursday · Ch. 3 HW: 1, 2, 3, 5, 8, 9, 11, 17 Review Vectors and Vector Multiplication Discuss lab writeups again: 4 arguments to be made: § Accuracy: did instruments "agree" with each other? § Precision: how did uncertainties compare § Different Materials: how different did they need to be? § Known Materials: how close did they need to be? Review Ch. 2 Ch. 3: Motion in 2 Dimensions § From: x,v,a To: vectors r, v, a § Vector v: tangent to path of particle § Vector a: two components: § parallel component: changes magnitude of v § perpendicular component: changes direction of v § Key: Treat different dimensions as separate 1D problems
Problem Solving Strategy (page 91) |

Announcements:
· Take Q2 · Ch. 2 HW: 23, 28, 34, 39, 42, 45 Review Vectors and Ch. 2 Force Table Lab |

Announcements:
· Return Q1 · Quiz 2 Thursday (includes vector addition) · Ch. 2 HW: 1, 3, 5, 9, 10, 15, 21 Questions on vectors and homework Chapter 2 Overview: § Describing motion § Will describe "why" later § Physics is powerful by expressing things math. Chapter 2 Discussion § let a particle's position be x § average vs instantaneous velocity § x-t graphs § average vs instantaneous acceleration § constant acceleration § gravity Chapter 2 Discussion Questions (Pg. 68) Problem Solving Tips Group Problems |

Announcements:
· Take Q1 · Do L1 · Ch. 1 HW: 42, 43, 47, 48, 52, 65, 71 Finding Vector Components Switching between Vector Representations Adding Vectors, the Recipe Multiplying Vectors: Dot and Cross Products Lab: § Don't experimentally prove, but can disprove § Always record uncertainty § Lab writeups § Grading scale |

Announcements:
· First Quiz Thursday · Ch. 1 HW: 1.1, 1.5, 1.9, 1.15, 1.16, 1.17, 1.31, 1.35, 1.37, 1.41 Lessons from first chapter: § Physics is being able to solve problems § Units & unit analysis are important § Uncertainty & sig figures & accuracy/precision important for lab § Units/vectors tremendously important for rest of physics Vectors: § Difference between vectors and scalars § Representations of vectors § Freedom to slide § Negative of § Parallel / Anti- parallel Vector Addition: § Head-to-tail § Adding by components § Finding components (decompose) |

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Steve Liebling (home)