SI UNITS. DO NOW Work silently and independently to answer the following questions Which units would you use to measure the following items? Ex: The weight.

Slides:

Advertisements

Similar presentations

SECTION 2.1 Units of Measurement. Objective 1. Define SI base units for time, length, mass, and temperature. 2. Explain how adding a prefix changes a.

Advertisements

2.1 - Scientific Notation.

Standards of Measurement Units and Standards 1.Standards – exact quantity that people agree to use for comparison 2.SI – standard system of.

Chapter 1: Nature of Science

Ch. 2 section 1-2 answers.

Do Now: Create a conversion factor for minutes per hour

Measurements Scientific Notation Significant Figures

Section 2.1 Units and Measurements

Measurement and Calculation Unit 2. The Fundamental SI Units (la Système Internationale, SI) Physical QuantityNameAbbreviation Mass Length Time Temperature.

Measurement. Stretch your mind: You are given a bottle of water and 3 beakers. One of the beakers holds 30mL, one holds 40mL, and the largest of the three.

MEASUREMENT Mr. Peterson SCIENCE Center Grove Middle School North.

Metric System & SI System. The standard for measurement in the scientific community today is the metric system. We use the metric system for 3 reasons:

1.1 What is Chemistry Objectives Define Chemistry Differentiate between microscopic and macroscopic Know the relationship between pure and applied chemistry.

Measurement and Calculation Unit 2. The Fundamental SI Units (le Système International, SI) Physical QuantityNameAbbreviation Mass Length Time Temperature.

The Metric System Objective: Identifying what units are used for different measurements and how to convert measurements.

Basic Units Lengthmeters Masskilograms Timeseconds.

Measurements and Calculations

SI System The International System of Units Derived Units Commonly Used in Science Area and Volume: Derived Units Prefixes in the SI System Map of the.

1. 2 Fundamental Quantities and Units Fundamental QuantityMKS Unit.

Derived Units Foreign Language? Units We discussed standard units like the meter for distance, seconds for time, and gram for mass Today we.

Metric Conversions Ladder Method T. Trimpe 2008

STANDARDS OF MEASUREMENT Section 2

Metric System Scientific Measurements. Measurement Systems  We have our own the “English” system  Science involves a lot of converting, the English.

Chapter 2 Data Analysis. I. SI Units Scientists adopted a system of standard units so all scientists could report data that could be reproduced and understood.

Chapter 1 Section 3 Measurement. Objectives and Questions.

Vocabulary- Week 2 From Chemistry Book… dimensional Analysis base Unit derived Unit Kelvin Celsius From Agenda…. animadversion credence feckless cavort.

Day 12 Lab Day 13 – Measurements Day 14 Quiz on Units and Measurements Day 15 – Lab Density Day 16 – Quiz Scientific Notation and Sig Figs.

Units of Measure Mini-Math Camp. Scientists across the world use the International System of Units (SI).

Chemistry and Matter. Chemistry: The Central Science Chemistry is the study of matter and the changes it undergoes A basic understanding of chemistry.

SI measurement system Fundamental units Length meter m

Units. Unit Systems  Systems set up fundamental units  British system - foot, pound, second  Metric system - meter, kilogram, second.

Standards of Measurement Chapter 1 Section 2. Units and Standards Standard-an exact quantity that is agreed upon to use for comparison hands feet piece.

© 2003 Mark S. Davis Chemistry 101 Inorganic Chapter 1.

Metric Conversions, Scientific Notation, and Dimensional Analysis.

Scientific Notation # from 1 to x 10 exponent 800= 8 x 10 x 10 = 8 x = x 10 x 10 x 10 = x = 1.4 ÷ 10 ÷ 10 ÷ 10.

CHAPTER 1 Physical Quantities, Units and Measurement.

Chapter 2 Data Analysis Section 2.1 Units of Measurement.

SI Base Units of Measurement in Chemistry. SI Units for Mass and Volume Mass: the amount of matter that an object contains –Base Unit: gram –Most Common.

FUNDAMENTAL AND DERIVED QUANTITIES. Objectives of Learning Students are able to: identifier physical quantities in daily life collected physical quantities.

Note Guide 1-1 Measurement Measurement – quantity that has both a number and a unit. EX: 36° Celsius (#) (unit) --measurement is central to science, especially.

Units. Unit Systems  Systems set up fundamental units  British system - foot, pound, second  Metric system - meter, kilogram, second.

SI Base Units, Metric System, Factor Label Method ConversionsSI Base Units, Metric System, Factor Label Method Conversions.

Matter is Anything that takes up space and has mass. Everything you can touch is made of matter. If it is made of anything, that anything is matter.

SI System International System of Units Taking Measurements.

Measuring & Calculating

12 Physics Lesson #1 Physics studies fundamental questions

1.3 Measurement Scientists work with very large or very small numbers

Chapter 1.1 Notes - Metrics

Unit Systems and Dimensional Analysis

Units Of Measurement.

Metric Systems and Significant Figures

Units of Measurement.

Metrics & SI Units.

International System of Measurement

Chapter 1 The Nature of Science 1.2 Standards of Measurement

MEASUREMENT Using Measurements.

Chapter 3 Scientific Measurement 3.3 Solving Conversion Problems

Chapter 3 Scientific Measurement 3.3 Solving Conversion Problems

Chapter 2 Advanced Honors Chemistry

Standards of Measurement

Measurements, Conversions & Dimensional Analysis

1.1. Measurements in physics

Measurements and Calculations

Science and Measurements

DATA ANALYSIS Measurement; Units; Calculations; Significant Figures; Prefixes; Dimensional Analysis Neely's Chemistry.

Presentation transcript:

SI UNITS

DO NOW Work silently and independently to answer the following questions Which units would you use to measure the following items? Ex: The weight of a person. Answer: Pounds or Kilograms The temperature outside A roadtrip across the country A track and field event Weightlifting A bottle of soda The length of a school day The length of a school year Why do you think units are important to a scientist. Give 2 reasons.

Objective SWBAT identify the base SI units and apply the appropriate prefixes on an exit ticket.

What is a Unit? UNIT: An individual thing or person that is single or complete, esp. for purposes of counting or for calculation. Examples: A family is a unit! A piece of candy is a unit! A piece of pizza! A pound! A homerun! One of your own?

Guided Notes: SI Units What is SI? The System International. A system of units based on the metric system. The system is standardized meaning that scientists all over the world are using the same units. THOUGHT QUESTION: Why do you think this is important for scientists?

Base Units The SI system uses 7 base units Base unit: a defined unit in a system of measurement that is based on an object or event in the physical world MeasurementBase Unit TimeSecond (s) LengthMeter (m) MassKilogram (kg) TemperatureKelvin (K) Amount of a substanceMole (mol) Electric currentAmpere (A) Luminous (light) intensityCandela (cd)

What is Kelvin? Kelvin is a measure of temperature developed by Lord Kelvin, a Scottish physicist. The equation for Kelvin involves adding 273 degrees to the temperature in Celsius. K=C+273 Example: Water freezes at 0 degrees Celsius. That is 273 degrees in Kelvin = 273 K 273 is the magic number

SI Prefixes If the base unit for distance in SI is the meter, what is a kilometer? SI uses a system of prefixes to describe the magnitude of measurements. These prefixes are based on powers of kilometer=1000 meters Kilo=1000 x base unit

Prefixes

Derived Units Derived Units: A unit that is defined by a combination of base units. Example: Density=Mass/Volume The density of water is 1 g/mL

Practice: Base Units MeasurementBase Unit Time Meter (m) Mass Temperature Amount of a substanceMole (mol) Amperes (A) Light IntensityCandela (cd)

Practice: Celsius to Kelvin Conversion Convert to Kelvin 25 degrees Celsius -10 degrees Celsius Convert to Celsius 394 degrees Kelvin

Independent Practice Work silently and independently. Use your notes.

Pop Quiz Write out the following numbers in scientific notation: Write out the following number in standard notation: 7.39 * 10 8