slide 1Physics 1401 - L 1 Frank Sciulli

Introductory Physics Courses Designed for Engineering and Science Students

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

world, and college level physics problem solving 1600 sequence: + more abstract and theoretical; approach

more mathematical; order of topics slightly different 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

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

prepared in Physics, you are probably in the wrong course

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Science/Engineering Sequences

SequencePoints

Recommended Median Grade

Separate Lab Course

Physics 1401-2-3 3.0 B/B+ 1493 or 1494

Physics 1601-2, and 2601

3.5 mid B+ 1493 or 2699

Physics 2801, 2802

4.5 B+/A- 3081

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1400 Sequence

Three semester sequence (no labs included) 1401-Mechanics and Thermodynamics 1402-Electricity/Magnetism and Optics 1403-Wave motion and Quantum Mechanics

Each is worth 3.0 points Recommended median grade at B-B+

interface Separate Lab courses (when appropriate)

If 1401-02 only, take 1493 in 3rd semester If all 3 semesters, take 1494 in 4th semester

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

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Text and Topics

Text is Halliday, Resnick, Walker;"Fundamentals of Physics", 6th ed.(with metromedia CD)Chapters 1-15, 19-21 Mechanics: includes linear motion,

forces, energy, rotations, thermodynamics

Note that chapters 16 – 18 are not covered this semester. These include topics on harmonic motion,

waves, … These topics are part of the third

semester (1403) in the sequence

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Mechanics of this Course

No handouts All information transmitted on the web!

Grades (I hate them, but …responsibility to be FAIR!) … detailed policy at website you MUST be able to do problems in exams 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.

College course: assume all are mature adults Check out the home page and links – all

information that I thought useful is written there … http://www.nevis.columbia.edu/~sciulli

/Physics1401/Ph1401.html

sorry for the pun!

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History (Big Picture)

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Physics – Matter and Forces

This course is meant to begin the study!!

Physics 1401

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Predictive Nature of Physics Useful

And deadly if neglected !!!!

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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 BI G 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

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Mathematics

x=x0+vtEvery

formula carries a concept!

Read them that wayThe math (algebra,

trigonometry, calculus) are tools to

ends!

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Immediate Future

I assume you know (reviewed in text) algebra and trigonometry well!! vector familiarity (review elementals as we go.) calculus simultaneously (know fundamentals!.)

All assignments and due dates are posted. See website.

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

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

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

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Simple problem (like sample 1 – 4)

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

ship and place meter stick on ship side

2. 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?

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

between Aswan and Alexandria.

See NY Times, Sept 24,2002Science’s 10 most beautiful

expts.

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Definitions of velocity and acceleration

Average velocity

Average acceleration

xv

t

va

t

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Velocity Average velocity

Interval dependent Instantaneous

velocity Limit of interval = 0

0

6Case shown 2 /

li

3

m

i

avg

nstt

x dxv v

xv v

tms

t

v m s

dt

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In the Beginning

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.)

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

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

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