slide 1Physics 1401 - L 1 Frank Sciulli

Introductory Physics Courses Designed for Engineering and Science Students

l Three different introductory sequences for people with differing preparations, interests, and goalsu 1400 sequence: emphasizes basics, connections in the world,

and college level physics problem solvingu 1600 sequence: + more abstract and theoretical; approach

more mathematical; order of topics slightly differentu 2800 sequence: the three semesters of the 1600 sequence in

two semesters; specifically for students with advanced placement in mathematics and strong background in physics

l All courses incorporate calculus at early stagel You are now in Physics 1401(1) … if you are well

prepared in Physics, you are probably in the wrong course

slide 2Physics 1401 - L 1 Frank Sciulli

Science/Engineering Sequences

3081

1493 or 2699

1493 or 1494

Separate Lab Course

B+/A-4.5Physics 2801, 2802

mid B+3.5Physics 1601-2, and 2601

B/B+3.0Physics 1401-2-3

Recommended Median GradePointsSequence

slide 3Physics 1401 - L 1 Frank Sciulli

1400 Sequence

l Three semester sequence (no labs included)u 1401-Mechanics and Thermodynamicsu 1402-Electricity/Magnetism and Opticsu 1403-Wave motion and Quantum Mechanics

l Each is worth 3.0 pointsl Recommended median grade at B-B+ interfacel Separate Lab courses (when appropriate)u If 1401-02 only, take 1493 in 3rd semesteru If all 3 semesters, take 1494 in 4th semester

l Emphasizes basics, connections in the world, and college level physics problem solving

slide 4Physics 1401 - L 1 Frank Sciulli

Text and Topicsl Text is Halliday, Resnick, Walker;

"Fundamentals of Physics", 6th ed.(with metromedia CD)Chapters 1-15, 19-21uMechanics: includes linear motion, forces,

energy, rotations, thermodynamicsl Note that chapters 16 – 18 are not

covered this semester. u These include topics on harmonic motion,

waves, … u These topics are part of the third semester

(1403) in the sequence

slide 5Physics 1401 - L 1 Frank Sciulli

Mechanics of this Course

l No handoutsu All information transmitted on the web!

l Grades (I hate them, but …responsibility to be FAIR!) … detailed policy at websiteu you MUST be able to do problems in examsu homework, though only a small component of the final grade in

itself, is an ESSENTIAL tool to assure yourself you know the concepts and how to do problems.

u College course: assume all are mature adultsl Check out the home page and links – all information that

I thought useful is written there …u http://www.nevis.columbia.edu/~sciulli/Physics1401/Ph1401.html

sorry for the pun!

slide 6Physics 1401 - L 1 Frank Sciulli

History (Big Picture)

slide 7Physics 1401 - L 1 Frank Sciulli

Physics – Matter and Forces

This course is meant to begin the study!!

Physics 1401

slide 8Physics 1401 - L 1 Frank Sciulli

Predictive Nature of Physics Usefull And deadly if neglected !!!!

slide 9Physics 1401 - L 1 Frank Sciulli

History (people oriented)13 109 BCE Universe started 5 109 BCE Solar system & Earth formed 2 -1 106 BCE Man precursors with small brains 105 BCE Homo Sapiens with BIG brains 104 BCE Writing (for business) 1000 BCE Bible written down 400 BCE -400 Greeks, Romans … ideas … many wrong 1400-1650 DaVinci, Brahe, Copernicus, Galileo 1650-1900 Newton, … -- Classical Mechanics 1750-1900 Franklin,…Maxwell --Electricity&Mag 1900- "Modern" Physics

slide 10Physics 1401 - L 1 Frank Sciulli

Mathematics

x=x0+vtEvery formula

carries a concept!

Read them that wayThe math (algebra,

trigonometry, calculus) are tools to ends!

slide 11Physics 1401 - L 1 Frank Sciulli

Immediate Futurel I assume you know (reviewed in text)

u algebra and trigonometry well!!u vector familiarity (review elementals as we go.)u calculus simultaneously (know fundamentals!.)

l All assignments and due dates are posted. See website.

l Chapter 1 (Measurement, numbers, ...) should be a review of what you know. Read it and make sure.

l Chapters 2 (1D motion) and 3 (vectors) also should be largely review.

l I will go quickly through first few chapters (so we have time to get through the topics programmed for the semester).

slide 12Physics 1401 - L 1 Frank Sciulli

Simple problem (like sample 1 – 4)

Earth spherical? Measure radius!1. Mark lake level at location of ship

and place meter stick on ship side2. Go to lake shore (d = 4.4km) and

sight along lake; find that sighting is on ship side at h = 2.0m.

3. What is the radius, R, of the earth?

θ

Eratosthenes (300 BCE) measured radius of the Earth to 5% using geometry, angle between Aswan

and Alexandria.See NY Times, Sept 24,2002

Science’s 10 most beautiful expts.

slide 13Physics 1401 - L 1 Frank Sciulli

Definitions of velocity and acceleration

Average velocity

Average acceleration

xvt

vat

∆≡

∆

∆≡

∆

slide 14Physics 1401 - L 1 Frank Sciulli

Velocityl Average velocity u Interval dependent

l Instantaneous velocityu Limit of interval = 0

0

6Case shown 2 /

li

3

m∆ →

∆ = = = ∆

∆= =

∆

=

=

i

avg

nst t

x dxv v

xv vt

ms

t

v m s

dt

slide 15Physics 1401 - L 1 Frank Sciulli

In the Beginning

l Chapter 1: Units, Dimensions, powers of ten, idea of mass. Should be mostly a review. Make sure you can do the problems in the text. (None assigned.)

l Chapter 2: Position, velocity, acceleration in one-dimension (1D). Should also be largely a review. Some discussion here. Problems assigned.

l Chapter 3: Vectors -- essential for discussion of more than 1D. We will discuss.

l Next lecture, review chapters 2 & 3. Read them and start on assigned homework problems soon.

Finish the day with a pretty description of the scales of physics … Phillip Morrison