Review of Scientific Notation

Slides:

Advertisements

Similar presentations

The Scientific Method: Research in Science How do we learn anything about the Universe? The key element is curiosity! One of your main goals as a teacher.

Advertisements

Welcome to ASTR 105 Lab! Review the Syllabus Notes for Lab 1.

Astronomical Numbers SNC1D. Powers of Ten Numbers in astronomy are often much larger than we are used to dealing with in daily life. We often express.

Chapter 1: Why Learn Astronomy?. We Have Studied Astronomy Since Ancient Times Astronomy is the oldest science. Every ancient culture studied motions.

Scale Principles of Physics. Why do we need to think in terms of scale? To understand the size of things we can’t see – How big is Earth? – How big is.

Mr. Hernandez Room 274. Needed everyday Binder 1” or 2” 1” good for one semester 2” good for whole year Pencil and a Pen Pencil # 2 Pen must be Blue or.

1-1 What is Physics?  What does Physics mean? "Physics" is from the Greek root physik (science of nature) and Latin physica (natural science).  It’s.

Introduction to analysis Data handling, errors and so on.

Density = Mass Volume At 4 o C one gram of pure water occupies one milliLiter or one cubic centimeter. Calculations 1) 43.2 mL of liquid has a mass of.

Introduction to Astronomy & Tools of Science (Chapter 1)

METRIC SYSTEM MEASUREMENT SYSTEM IN SCIENCE.  A DECIMAL SYSTEM (BASED ON UNITS OF 10)  DEVELOPED BY A FRENCH MATHEMATICIAN NAMED GABRIEL MOUTON  aka.

Metric to English Standard and back again. Units and Standards What is a standard? ___________________ ___________________ ___________________ Suppose.

The Metric System Base Ten Measurement.

Confusing Measurements French National Assembly Academy of Sciences.

Metric Base Units Meter (m) – length Kilogram (kg) – mass Kelvin (K) – temperature Second (s) – time Mole (mol) – amount of substance.

Last time… Fundamental SI units Length (meter), time (second), mass (kilogram) “mks” system (metric system) Unit conversion “unit conversion ratio” All.

January 10, 2006Astronomy January 10, 2006Astronomy What is Astronomy? The study of objects outside the Earth. Examples: The Moon What phase.

Astronomy 103 Lecturer: Prof. Alex Lazarian Office Location: 6289 Chamberlin Hall Website:

CHM130 Lecture Day 2 Dimensional Analysis Metric Conversions

Math Skills In this chapter we will review basic skills necessary to perform mathematical calculations in physics, these include Signed Numbers Metric.

International System of Units: SI System Universally accepted way to make measurements. Based off of the number 10 Conversions can be done easily.

SI (International/Metric System) of Units Universally accepted way to measure things Based off of the number 10 Conversions can be done easily.

Astronomy 1010: The Solar System Prof. Paul J. Wiita Rm 715, One Park Place, Phones: (office);

1-1 What is Physics?  "Physics" is from the Greek root physik (science of nature) and Latin physica (natural science).  It’s the scientific study of.

Dimensional Analysis CONVERTING UNITS

What is astronomy? Greek word astronomia

Astronomy and the Universe

Today’s Agenda Do Now Going over Homework Measurement Powerpoint

Introduction to Astronomy & Tools of Science

Study Points Picture/rank the size of the following objects: our Moon, Earth, Sun (or a star), our solar system, the Milky Way galaxy (our galaxy), the.

Mr. O’Rourke Technology Education

Measurement-A Common Language

Astronomy 1020: Stars, Galaxies and the Universe

How Big is “BIG”? Where do we fit in the universe?

Measurement in Science

/21 & 10/24/11 Scientific Notation

APES Math Review.

Astronomy and the Universe

2015 Physics WoF Start the year right with a .

Units of Measurement.

Metric System Notes.

Lab Skills Physical Quantities Uncertainty SI Units Prefixes

Introduction: Matter and Measurement

Units of Measurement All measurements must include the number and the unit Ex: 4.5 m or 23g/mL Use SI System- International System of Units which includes.

Review of Previous Lesson

Algebra 1 Section 8.3.

Measurements Via

Study Points (marked with * in slideshow)

Lab Skills Physical Quantities Uncertainty SI Units Prefixes

Metric Measurement, Scientific Notation, & Sig Figs

Metric Base Units Meter (m) – length Kilogram (kg) – mass

Astronomy 1020: Stars, Galaxies and the Universe

Introduction Which of the following professionals (專業人仕) need knowledge (知識) of physics? Medical Doctor (醫生) Accountant (會計師) Civil Engineer (土木工程師)

Chapter-2: Analyzing Data (measurements) Dr. Chirie Sumanasekera

Astronomical Tools.

Lecture 1.3 Conversion of Units

Factor Label Method Dimensional Analysis

The Metric System.

Qualitative vs. Quantitative Observations

Introduction Which of the following professionals (專業人仕) need knowledge (知識) of physics? Medical Doctor (醫生) Accountant (會計師) Civil Engineer (土木工程師)

Regulus (about 75 light years distant) is part of a 4-star system, with a close companion double star visible to its lower left. Leo I (about 800,000 light.

Scientific Building Blocks

2016 Physics WoF Start the year right with a .

Measurements in Chemistry Review

Science Skills Ch 1 Notes.

Presentation transcript:

Review of Scientific Notation 102 = 100, 101=10, 100 = 1, 10-1=0.1, 10-2=0.01 1012=1,000,000,000,000=trillion (Tera-) 109 =1,000,000,000 = billion (Giga-) 106 = 1,000,000 = million (Mega-) 103 = 1,000 = thousand (kilo-) 10-2= 0.01=one-hundredth (centi-) 10-3= 0.001=one-thousandth (milli-) 10-6= 0.000001=one-millionth (micro-) 10-9= 0.000000001=one-billionth (nano-) 5.4x103=5,400 7.05x10-3=0.00705 4,700=4.7x103 0.017 = 1.7x10-2 Start here on 1/9

Powers of Ten Arithmetic Multiplication: (5.3x103) x (6x10-5) = 31.8x103+(-5) =31.8x10-2 = 3.18x10-1 =0.318 = 0.3 One significant figure! Keep only the minimum number of significant figures going into the calculation in the answer. Division: (9.3 x10-4)/(3.10x10-6) = 3.0 x10-4-(-6) = 3.0 x102 = 300 BUT, 3.0x102 is the better answer, as it CLEARLY has two significant figures; scientific notation is PRECISE.

The Scales of the Universe We deal with the largest possible things -- the whole universe -- and with the smallest -- nuclei of atoms. This requires us to use a wide range of PHYSICAL UNITS and we USE THE METRIC SYSTEM. Length: m or cm Mass: kg or g Time: s or yr Temperature: K(elvins) ON 1/18/05 START w/ SLIDE 8 SEASONAL VARIATIONS Radius of Sun = 6.96x10^10cm = 7x10^5 km Mass of Sun = 1.989x10^33g = 2x10^33g = 2x10^30 kg One year = 31.5x10^7 s 1 pc = 3.26 light-yr = 3.085678 x 1018cm=3.1x1013km 1AU = 1.496x1013cm = 150,000,000 km (astronomical unit = mean distance between earth and sun)

Sizes of Everything Universe: open or flat -- infinite; closed -- 1028cm Galaxies: no of stars 109-1013; size ~ 1023cm~3x104pc Stars: 1010-1012cm (most radii) Typical separations: 1018cm ~ 1 pc Planets: RE=6.4x103km = 6.4x108cm Separations: ~ 1 AU Mountain: Tallest ~ 10 km, more typical ~6 km Hm/RE=6.4km/6.4x103km=1.0x10-3 People: 1.5m = 1.5x102cm (~5 feet) Visible light: wavelength=500nm=5x10-5cm Atom: 0.1nm=10-8cm=10-10m (X-ray wavelength) Nucleus: 1 Fermi = 10-13cm = 10-15m Write math symbols for >, >=, equivalent, approx equal, proportional, roughly equal

Time Scales of the Universe Time since the Big Bang: ~1.4x1010 yr Galaxies formed: ~1.3x1010 yr ago Solar system formed: 4.55x109 yr ago Oldest rocks on Earth: 3.8x109 yr BP Earliest life forms: ~3.5x109 yr BP Earliest hominids:~2x106 yr BP Mountains: Appalachians:~2.5x108yr BP; Rockies: 7x107 yr BP Human lifespan: ~75 yr Oscillation time for visible light: ~2x10-15 s Time for light to pass the nucleus of an atom: ~3x10-24s

Astronomy 1020 Lab Requirements Bring to lab next week Astronomy: A Laboratory Textbook, 3rd Ed., by John W. Wilson Metric ruler ~ 30 cm long Protractor Drawing compass Scientific calculator (not a cell phone)