Physics 111 Honors Classical Mechanics Prof. Haimin Wang

Slides:



Advertisements
Similar presentations
The Science of Physics Section 1-2 Holt
Advertisements

The Realm of Physics.
Measurement Why are precise measurements and calculations essential to a study of physics?
Context and definition
Introduction to Physics
Chapter-1 Measurements.  Discovery of Physics: Through measuring Physical Quantities such as length, time, mass, temperature, pressure and electric current.
Standards for Measurement
Chapter 1 Measurement Lecture Notes
Physics 111, Fall 2005 Classical Mechanics Prof. Haimin Wang
Physics 111: Elementary Mechanics – Lecture 1 Carsten Denker NJIT Physics Department Center for Solar–Terrestrial Research.
MEASUREMENT WHAT IS PHYSICS THE METRIC SYSTEM METRIC PREFIXES DIMENSIONAL ANALYSIS SIGNIFICANT FIGURES CONVERSION OF UNITS ORDER OF MAGNITUDE NOTATION.
Section Units of Measurement
Physics, Measurements and System of Units
Chapter 1 Introduction, Units, and Dimensional Analysis
1.2 Measurement in Experiments
1 Standards for Measurement. 2 Mass and Weight 3 Matter: Anything that has mass and occupies space. Mass : The quantity or amount of matter that an object.
AP Physics Chapter 1 Measurement.
“The Basics”.  SI = Système Internationale d’Unités  What we know as the “Metric System”  Units are standardized and regulated by two organizations:
Chemistry: The Study of Change Chapter 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
METRIC AND MEASUREMENTS Scientific Notation Significant Digits Metric System Dimensional Analysis.
Chapter 1 Measurement 第1章 測量
Physics Chapter 1 Saul Beltran Mr. Kim 12/9/05 Per. 7.
Ch. 2 Sec. 1 Measures in Science.
Physics Physics is the study of the laws of nature that govern the behaviour of the universe, from the very smallest scales of sub-atomic particles to.
PHYSICS 101 (Physics for the Nonscientist)
C H A P T E R 1 Introduction and Mathematical Concepts
Scientific Measurements. BIG NUMBERS Scientists often work with very large numbers. Scientists often work with very large numbers. National debt = $5,653,000,000,000.
SI - System International The Metric System. How high is the ceiling?
August 18,  Why is it important for scientists to use the same system/units of measurement? GUIDING QUESTION #1.
Units Of Measurement Mrs. Mawhiney. Measurement of mass, length and volume In the United States, we use a fairly awkward system of measurement for most.
PHYSICS AND MEASUREMENT. FUNDAMENTAL QUANTITIES SI units:  Time – second  Mass – Kilogram  Length – meter.
Chapter 1 Introduction What is physics? Physics deals with the behavior and composition of matter and its interactions at the most fundamental level. Curiosity.
Metrics and Measurement Be sure to look at the helpful links on the unit page on the website if you need extra practice ! Syll. Statements –
Measurement and SI Units Review. Measurement and Significant Figures Measurement is the comparison of a physical quantity to be measured with a unit of.
What is Physics? Dictionary: “the study of matter, energy, and the interaction between them” Physics answers the questions 3 year olds ask – WHY??
1.Determine what physics governs and controls 2.Conclude that physics is a building block of all the sciences 3.Explain the need for standardization of.
Orders of Magnitude and Units. The ‘mole’: - The amount of a substance can be described using ‘moles’. - ‘One mole’ of a substance has 6 x molecules.
The International (SI) System of Measurement. The International System of Measurements (SI) In 1960, the Eleventh General Conference on Weights and Measures.
PART 1 MECHANICS. Chapter 1 ： GENERAL INTRODUCTION ( MEASUREMENT) 1.1The Development of Science 1.1.1Definition of physics A science to study matter and.
C H A P T E R 1 Introduction and Mathematical Concepts Units: Unit conversion, Dimensional/Unit Analysis Trigonometry Vectors.
STANDARDS OF MEASUREMENT Section 2
Systems of Measurement
Chapter 1 Measurement. We measure things (such as weight, time, length, speed, etc.) We use tools (rulers, clocks, speedometers, etc.) to measure things.
Chemistry: The Study of Change Chapter 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Updated Aug 2006Created by C. Ippolito August 2006 Measurement Objectives: list three requirements for making a measurement express measurements in the.
METRIC AND MEASUREMENTS Scientific Notation Significant Digits Metric System Dimensional Analysis.
Measurements In Physics
Lecture Outline Chapter 1 Physics, 4 th Edition James S. Walker Copyright © 2010 Pearson Education, Inc.
Physical Quantities & Units
Chapter 1 Measurement. We measure things (such as weight, time, length, speed, etc.) We use tools (rulers, clocks, speedometers, etc.) to measure things.
“The Basics”.  SI = Système Internationale d’Unités  What we know as the “Metric System”  Units are standardized and regulated by two organizations:
Physics 2 (PHY 125) Classical Mechanics Dr Manjunatha S.
Chapter 1 Measurement. 1.2 Measuring things We measure each quantity by its own “unit” or by comparison with a standard. A unit is a measure of a quantity.
What is Physics? The study of matter, energy, and the interaction between them Physics is about asking fundamental questions and trying to answer them.
In this chapter you will:  Use mathematical tools to measure and predict.  Apply accuracy and precision when measuring.  Display and evaluate data graphically.
What Is Physics?? The science of matter and energy and their interactions Involves: Motion, Fluids, Heat, Sound, Light, Electricity & Magnetism, Simple.
Units and Measurement Chemistry Mrs. Coyle. A) SI Units, Scientific Notation, Measurement, Accuracy, Precision, Error.
Physics The word physics comes from Greek, meaning nature. The study of nature came to be called “natural philosophy.” Physics is the study of the laws.
IB Physics C.D.Cameron International School of Geneva.
C H A P T E R 1 Introduction and The Nature of Physics
Measurements in Experiments
Important Information
Chapter 1 Measurement In this chapter we will explore the following concepts: 1. Measurement of a physical parameter 2. Units, systems of units 3. Basic.
Physics and Mechanics Physics deals with the nature and properties of matter and energy. Common language is mathematics. Physics is based on experimental.
Chapter 1 Measurement In this chapter we will explore the following concepts: 1. Measurement of a physical parameter 2. Units, Systems of units 3. Basic.
Chapter 1 Measurement In this chapter we will explore the following concepts: 1. Measurement of a physical parameter 2. Units, Systems of units 3. Basic.
Chapter 1 Measurement and Problem Solving
Presentation transcript:

Physics 111 Honors Classical Mechanics Prof. Haimin Wang

My Research: Solar Physics Instrumentation Magnetic Fields and Solar Activity

Week 1  Chapter 1 Sections 1–6 –Measurement –International System of Units (SI System) –Conversion of Units –Length –Time –Mass

Measurements  Use laws of physics to describe many different physical systems –Small set of simple laws –Common language is mathematics  Test laws by experiments –Select smallest set of standards and derive other standards –International Bureau of Weights and Measures (Paris), National Bureau of Standards, etc. –Système Internationale (SI), International System of Units, metric system, or mksA system

SI Units Length meter m Masskilogramkg Timeseconds Electric currentampereA Thermodynamic temperaturekelvinK Luminous intensitycandelacd Amount of substancemolemol Why should we care about SI units? Mars Climate Orbiter:

10 x PrefixSymbol x=18 exaE 15 petaP 12 teraT 9 gigaGGeV 6 megaMMeV 3 kilokkeV 2 hectoh 1 decada Prefixes for SI Units

10 x PrefixSymbol x =  1 decid  2 centiccm  3 millimmm  6 microµµm  9 nanonNm  12 picopPm  15 femtoffm  18 attoa Prefixes for SI Units

Example of Length MeasurementsLength (m) Distance to 1 st galaxies2x10 26 Distance to Nearest Star (Proxima Centauri) 4x10 16 Distance to Pluto6x10 12 Radius of Earth6x10 6 Height of Mt. Everest9x10 3 Thickness of this page1x10 -4 Radius of hydrogen atom5x Radius of a proton1x10 -15

Time  1 second is the time taken by 9,192,631,770 oscillations of the light emitted by cesium-133 atom  Speed of light c=299,792,458 m/s

Example of time MeasurementsTime (second) Age of Universe5x10 17 Length of a year3x10 7 Length of a day9x10 4 Lifetime of muon2x10 -6

Mass  Standard 1: a platinum-iridium cylinder in Paris  Standard 2: Carbon-12 has 12 atomic mass units (u). 1u= x kg

Example of mass ObjectsMass (kg) Sun2x10 30 Moon7x10 22 Ocean Liner7x10 7 Human Body6x10 Speck of dust7x Proton2x Electron9x10 -31

Units  Language is mathematics  Equations  Diagrams/visualization  Quantities have dimensions  Results have units  Consistency

Precision  Measurements –Uncertainties Absolute Percent –Calculation Result can not be better than data Use scientific notation to show significant figures –Examples = ,400,000 = x = 3 x 10 -3

What is the radius r of the Earth? (h = 1.70 m and t = 11.1 s )

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.