1 The Metric System Packet #6 10/12/2015 4:12:09 PM© Ryan Barrow 2008

Introduction The data recorded, during the experiment, has to be in a language that is understood by different individuals within the same field A Universal Language The Metric System (4 Parts--Fantastic Four) Mass Temperature Volume Length 10/12/2015 4:12:09 PM© Ryan Barrow

Units of Measurements Prefixes that denote multiples of 10 Tera Giga 10 9 Mega 10 6 Kilo 10 3 Centi Milli Micro Nano /12/2015 4:12:09 PM© Ryan Barrow

Measurements Continued Changing of prefixes When moving from large units to small units, we multiply When moving from small units to large units, we divide 10/12/2015 4:12:09 PM© Ryan Barrow

Mass The amount of matter in an object Mass is measured in kilograms (kg). 1 kilogram = 1000 grams 1 gram = 1000 milligrams 1000 kilograms = 1 metric ton 10/12/2015 4:12:09 PM© Ryan Barrow

Three Phases of Matter 10/12/2015 4:12:09 PM© Ryan Barrow

Mass vs. Weight Mass and weight are different Force The push or pull required to change the state of motion of an object Gravitational Force The force of attraction that every particle of mass in the universe exerts on every other particle Weight is the pull of gravity on a body of mass Weight is the force that gravity exerts on an object. 10/12/2015 4:12:09 PM© Ryan Barrow

Mass vs. Weight II Mass is always constant regardless of where the mass is located in the universe Weight changes depending on the amount of gravitational force 10/12/2015 4:12:09 PM© Ryan Barrow

Calculating Weight F = ma Force = mass * acceleration Weight is a measurement of force W = mg g = acceleration due to gravity 9.8 m/s 2 ((10 m/s 2 )) Weight on other worlds 10/12/2015 4:12:09 PM© Ryan Barrow

Temperature The degree of hotness or coldness of a body of mass or environment. There are three scales of measurement Celsius The scale of choice Fahrenheit Kelvin 0 degrees = Absolute zero (lowest possible temperature that can be attained by cooling an object. 10/12/2015 4:12:09 PM© Ryan Barrow

Calculating Temperature Scales Celsius T (Celsius) = (5/9)*(T (Fahrenheit) -32) Fahrenheit T (Fahrenheit) = ((9/5) * (T (Celsius)) + 32 Kelvin (Absolute) 0 degrees = Absolute zero (lowest possible temperature that can be attained by cooling an object = T (Celsius) /12/2015 4:12:09 PM© Ryan Barrow

Volume The amount of space that a 3D object takes up Volume is measured in liters 1 Liter = 1000 milliliters (mL) 1 Liter = 1000 cubic centimeters (cm³) 10/12/2015 4:12:09 PM© Ryan Barrow

Length A linear measurement of an object, end-to- end; it is usually the longest dimension. Length is measured in meters. 1 meter = 100 cm; 1 centimeter = 10 millimeters; 1 meter = 1000 millimeters; 1 meter = 1,000,000 micrometers; 1 meter = 1,000,000,000 nanometers 1 meter = 10,000,000,000 Angstroms 10/12/2015 4:12:09 PM© Ryan Barrow

Review 10/12/2015© Ryan Barrow

Review The Metric System Mass Kilograms Temperature Celsius Volume Liter Length meter 10/12/2015© Ryan Barrow