康涅狄格州大学：《普通物理》课程PPT教学课件（英文版）Lecture 1 Announcements

Physics 121, Sections: 9, 10, 11, and 12 f General Physics'' Professor robin cote Lecture 1 Agenda for Today Course Introduction Scope of the course Structure of the course what you have to do Topic-Measurement and Units Fundamental units Systems of units Converting between systems of units Dimensional Analysis Significant digits Physics 121: Lecture 1, Pg 1

Physics 121: Lecture 1, Pg 1 Physics 121, Sections: 9, 10, 11, and 12 “General Physics” Professor Robin Côté Lecture 1 Agenda for Today Topic - Measurement and Units Fundamental units Systems of units Converting between systems of units Dimensional Analysis Significant digits Course Introduction Scope of the course Structure of the course what you have to do

Announcements Homeworks posted on WedAssign You need to register ($10.00 by credit card) gotowww.webassign.netandlogin >)username: first letter of first name plus last name e.g. John Fernando Lachance: lachance 》 institution: uconn >)password: your People Soft ID #f Homework will be posted on Friday Homework will be due by 1: 00 AM the next Friday Homework graded automatically(results known in class) You can have up to 5 attempts per problem Labs Begin next week Physics 121: Lecture 1, Pg

Physics 121: Lecture 1, Pg 2 Announcements Homeworks posted on WedAssign You need to register (~ $10.00 by credit card) go to www.webassign.net and log in » username: first letter of first name plus last name e.g. John Fernando Lachance: jlachance » institution: uconn » password: your PeopleSoft ID # Homework will be posted on Friday. Homework will be due by 1:00 AM the next Friday. Homework graded automatically (results known in class) You can have up to 5 attempts per problem. Labs Begin next week

Course Info Course has several components: Lecture: (me talking, demos and Active learning) Reading assignments: from textbook Homework Sets: mostly"context rich" problems Tests: two midterms and a final > Questions on tests will look like those we do in the rest of the class; in homework and during lectures 》 No surprises Labs: (group exploration of physical phenomena) Moreinfoonmywebsitewww.phys.uconn.edu/-rcote Become familiar with the Physics Resource Center for help in problem sets. Room P201 Physics 121: Lecture 1, Pg 3

Physics 121: Lecture 1, Pg 3 Course Info Course has several components: Lecture: (me talking, demos and Active learning). Reading Assignments: from textbook. Homework Sets: mostly “context rich” problems. Tests: two midterms and a final. »Questions on tests will look like those we do in the rest of the class; in homework and during lectures. »No surprises Labs: (group exploration of physical phenomena). More info on my website: www.phys.uconn.edu/~rcote Become familiar with the Physics Resource Center for help in problem sets. Room P201

Lecture Organization Three main components: ecture discusses class materia 》 Topics from text ecture does demos/expts when possible >) Its not truth unless it makes a verifiable prediction You and i will interact with conceptual Active Learning problems Act Usually two or three per lecture Active Figures >)To illustrate concepts Physics 121: Lecture 1, Pg 4

Physics 121: Lecture 1, Pg 4 Lecture Organization Three main components: Lecturer discusses class material »Topics from text Lecturer does demos/expts when possible »Its not truth unless it makes a verifiable prediction ! You and I will interact with conceptual “Active Learning” problems. »Usually two or three per lecture Active Figures »To illustrate concepts Act

Scope of Physics 121 Classical mechanics. Mechanics: How and why things work motion, balance, energy, vibrations Classical: 》 Not too fast )Not too small (d > atom) Most everyday situations can be described in these terms Path of baseball Orbit of planets Vibrations of a piano wire Physics 121: Lecture 1, Pg 5

Physics 121: Lecture 1, Pg 5 Scope of Physics 121 Classical Mechanics: Mechanics: How and why things work. motion, balance, energy, vibrations Classical: » Not too fast (v > atom) Most everyday situations can be described in these terms. Path of baseball Orbit of planets Vibrations of a piano wire

Mechanics Motion in one and two dimension Laws of motion Energy, Momentum and Collisions Rotational Motion and the law of Gravity Rotational Equilibrium and Dynamics Solids and fluids Physics 121: Lecture 1, Pg 6

Physics 121: Lecture 1, Pg 6 Mechanics Motion in One and Two Dimension Laws of Motion Energy, Momentum and Collisions Rotational Motion and the law of Gravity Rotational Equilibrium and Dynamics Solids and Fluids

Thermodynamics Thermal Physics Energy in Thermal Processes The Laws of Thermodynamics G Physics 121: Lecture 1, Pg 7

Physics 121: Lecture 1, Pg 7 Thermodynamics Thermal Physics Energy in Thermal Processes The Laws of Thermodynamics

Vibrations and waves Vibrations and Waves Sound Physics 121: Lecture 1, Pg 8

Physics 121: Lecture 1, Pg 8 Vibrations and Waves Vibrations and Waves Sound

Mathematical Notation Mathematical symbols x: proportionality i.e. y oc X2 is greater than > is much greater than is approximately equal to is defined as Physics 121: Lecture 1, Pg 9

Physics 121: Lecture 1, Pg 9 Mathematical Notation Mathematical symbols   proportionality i.e. y  x 2 : is greater than > : is much greater than  : is approximately equal to  : is defined as

Scientific Notation Large number 100=1 101=10 102=100 etc Small numbers 10-1=0.1 102=0.01 103=0.001etc Physics 121: Lecture 1, Pg 10

Physics 121: Lecture 1, Pg 10 Scientific Notation Large number: 100 = 1 101 = 10 102 = 100 … etc Small numbers: 10-1 = 0.1 10-2 = 0.01 10-3 = 0.001 … etc