In Brief Introduction Syllabus Physics 1111K 1 A gift to you all An Ancient Chinese Proverb says I hear I forget I see I remember I do I understand Philosophy You must construct your own understanding Address Learning by doing Learn how to learn Reviewing Repeating Connecting 2 What is Physics The dictionary definition of physics is the study of matter energy and the interaction between them http www physics org article questions asp id 18 Probing nature with experiments Physicists try to find basic principles usually stated as mathematical models that explain as economically as possible the phenomena they encounter 3 Syllabus Available on Desire2Learn Textbook College Physics by Knight Field Jones with Student Workbook Volume I 2nd edition I want you all to succeed in this course and will be happy to work with you to make that happen Task Tests 3 Final Exam Quizzes Worksheets MP Homework ID MPWANGSP2014TR9 11 Laboratories Attendance Bonus Weight 25 18 15 17 25 3 Break points A B C D F 97 100 87 89 77 79 67 69 93 96 83 86 73 76 63 66 0 59 90 92 80 82 70 72 60 62 Bring your text book and Student Workbook in each of classes Last day to withdraw Mar 4th Final Exam May 1st 08 00 10 30AM 9 30AM class 10 45AM 13 15 PM 11 00AM class 4 Students are expected to attend each of classes Late submissions of Mastering physics homework will cost student 3 of the grade day a maximum penalty of 30 Quizzes and exams are individual work and to be done WITHOUT help from others There are no make up quizzes and tests Worksheets after one week of the due day will not be accepted Food and drinks are not allowed cell phones should remain OFF laptop computers are allowed to use for taking class notes only during class You are expected to behave properly in the classroom without disruption to student learning 5 PHYS 1111K Road Map Mechanics Heat and Wave motion Part I Force and Motion Ch 1 Representing Motion Ch 2 Motion in One Dimension Ch 3 Vectors and Motion in Two Dimension Ch 4 Forces and Newton s Laws of Motion Ch 5 Applying Newton s Laws Ch 6 Circular Motion Orbits and Gravity Ch 7 Rotational Motion Ch 8 Equilibrium and Elasticity Part II Conservation Laws Ch 9 Momentum Ch 10 Energy and Work Ch 11 Using Energy Part III Properties of Matter Ch 12 Thermal Properties of Matter Ch 13 Fluids Part IV Oscillations and Wave Ch 14 Oscillations Ch 15 Traveling Waves and Sound Ch 16 Superposition and Standing Waves How Kinematics Why Dynamics 6 Motion The change of an object s position or orientation with time As this snowboarder moves in a graceful arc through the air the direction of his motion and the distance between each of his positions and the next is constantly changing What are basic types of motion we will study in this book 7 Three Types of Motion Translation Ch 1 5 Rotation Vibration Ch 6 8 Ch 14 16 8 Describe of motion Motion diagrams Graphs Tables Equations 9 PHYS 1111K Chapter one Goals Basic concept about Motion Develop tools to help us to describe and understand the motion Topics Motion diagrams The Particle model Physical quantities Scientific notation Significant figures SI Units Scalar and vectors Physical quantities Position and time Distance Displacement Speed Velocity Acceleration Mass Definition notation and application 10 A motion diagram is a composite image showing an object s position at several equally spaced instants of time Represent the position velocity and acceleration of an object 11 More Examples of Motion Diagrams A stationary ball on the ground A skateboard rolling down the sidewalk at a constant speed A sprinter starting the 100 meter dash A car is stopping for a red light A basketball free throw 12 The Particle Model The object is treated as if all its mass were concentrated at a single point called a particle It helps us to concentrate on the overall motion of the object 13 Redraw motion diagrams using the Particle Model 14 What are you interested in when you try to describe understand a motion Where Position distance and displacement How fast Speed and velocity How does a velocity change Acceleration 15 Position and coordinate system Position where is the location of the object Reference point direction and distance relative to the reference point Coordinate can be used to provide these pieces of information A coordinate system an origin point axes with scale direction and unit x m 100 50 0 50 100 150 One dimensional coordinate system using an x axis Figure 1 7 The coordinate system used to describe objects along a country road 16 Stop to think 1 2 Three motion diagrams are shown Which is a dust particle settling to the floor at constant speed which is a ball dropped from the roof of a building and which is a descending rocket slowing to make a soft landing on Mars Checking Understanding 1 Two runners jog along a track The positions are shown at 1 s time intervals Which runner is moving faster 2 Two runners jog along a track The times at each position are shown Which runner is moving faster C They are both moving at the same speed 18 Distance and Displacement Speed and Velocity Distance is actual length of an object traveled regardless of its direction A scalar Displacement is a change of position including the direction of motion A vector A displacement vector starts at an object s initial position and ends at its final position It doesn t matter what the object did in between these two positions The boat s displacement is the straight line from its initial to its final position 19 Displacement The change in the position of an object as it moves from initial position xi to final position xf is its displacement x xf xi Question Sam is standing 50 feet ft east corner of 12th Street and Vine He then walks to a second point 150 ft east of Vine What is Sam s displacement x 150 ft 50 ft 100 ft In motion diagrams the displacement vectors span successive particle positions 20 Workbook Ch 1 1 3 6 8 and 10 Before Wednesday 1 Review Chapter 1 sections 1 2 and 3 Key Words Motion diagram Particle model Coordinate systems Position distance 2 Reading assignment Chapter 1 sections 4 and 5 Scan 1 6 Key Words Velocity speed Significant figures Scientific notation Units Vector and scalar 3 Mastering Physics Homework 1 MP HW 1 Introduction to Mastering Physics 21