Presentation on theme: "Metric Measurements. Metric Conversion Rap - by The Metric Crew – YouTubeMetric Conversion Rap - by The Metric Crew – YouTube Metric & Standard Measurement."— Presentation transcript:
Metric Conversion Rap - by The Metric Crew – YouTubeMetric Conversion Rap - by The Metric Crew – YouTube Metric & Standard Measurement Systems – YouTubeMetric & Standard Measurement Systems – YouTube Metric rap TeacherTube - A Better Way Called S. I.
English Units of Measurment Inch Foot Yard Mile Cup Quart Gallon Cubic Foot Cubic Yard LENGTH VOLUME Ounce Pound Ton WEIGHT TEMPERATURE Fahrenheit DENSITY Lb/ft³ MASS Slug SPEED or VELOCITY miles per hour
What is the Metric System? A system of measurement based on multiples of ten. Developed and first used by scientists in the 1700s Used by most nations other than the US What is the SI Measurement System ? Improved version of the metric system developed in mid 1900s Metric 4 US - Metric is the better system for America! Why do scientists use the SI (metric) system ? Ease of using powers of 10 Common communication between scientists
What is a Standard? An exact quantity that people agree to use for comparisons. Metric units for which there is a standard are also called fundamental units or base units. These are meter (m) - length kilogram (kg) - mass second (s) - time kelvin (K)– temperature ampere (A)– electric current mole (mol)– amount of matter in a substance candela (cd)- intensity of light Base unit definitions: Meter
Common metric units LENGTH Meter (m) Centimeter (cm) Kilometer (km) Millimeter (mm) MASS VOLUME Newton (N) WEIGHT Gram Kilogram milligram Liter (l) Milliliter (ml) Centimeter cubed (cm ³ ) Meter cubed (m ³ ) DENSITY g/ml g/cm³ kg/m³ TEMPERATURE Celsius (º C) Kelvin (K) SPEED or VELOCITY m/sec km/hr
Mass: the quantity of matter in an object Weight: force that results from gravity acting on an object * Mass and weight are not the same thing. The mass of an object will be the same regardless of where it is in the universe. Gravity is not the same everywhere in the universe or everywhere on Earth, so the weight of an object will vary depending on its location. Volume: The amount of space an object takes up Density: the mass per unit volume of an object
How do English units relate to Metric units? 1 meter ~ 39 inches 1 kilometer ~ 6/10 of a mile 1 liter ~ a quart 1 kilogram ~ 2 pounds 1 ounce ~ 28 grams
Common Metric Prefixes PrefixSymbolMeaning GigaG MegaM Kilo-k1 000 Hectoh100 Decada10 Decid0.1 or 1/10 Centic0.01 or 1/100 Millim0.001 or 1/1000 Microµ or 1/ Nanon Picop What mnemonic is helpful in recalling the prefixes shaded in blue?
Derived Units A portion or multiple of a standard unit or a combination of standard units. Examples: millimeter, kilometer, and cm³ are derived units of meter gram and milligram are derived units of kilogram g/cm³ is a combination of units
Standard or Derived? Minutes Liters Kilogram m² Kelvin m/s
What SI (metric) unit would be used for the following? Mass of sugar cube - Volume of water in measuring cup - Length of your shoe - Volume of gallon of milk - Mass of yourself - Distance from here to office - Distance from here to Columbus -
1. The distance between Opelika & Phenix City is about 50 _______. 2. A postage stamp has a mass of about 15 ____________. 3. An eye dropper full of medicine contains about 1 __________. 4. A full half gallon of milk is about 2 _____________. 5. The length of a pencil is about 12 _________________. 6. A paper clip has a mass of about 1 ___________ What would the correct unit be when using the Metric System?
How do you convert from one metric unit to another? By multiplying or dividing by factors of 10. This can easily be done by moving the decimal to the right when multiplying and moving the decimal to the left when dividing. The mnemonic below is also very helpful. K H D B (meter) d c m (gram ) (liter)
How do you convert from one metric unit to another? K H D B (meter) d c m (gram ) (liter) Convert the followingL 50 m = ___________cm 80 m = ______________km 780 mm = _______________m 780 mm = ___________km cm = ___________ m
How do you convert from one metric unit to another? K H D B (meter) d c m (gram ) (liter) Convert the following: 480 g = ___________mg 480 g = ______________kg 6 kg = _______________g 6 kg = ___________cg g = ___________ mg
How do you convert from one metric unit to another? K H D B (meter) d c m Convert the following: 3 L = ______________mL 34.6 mL = ____________cL 4 kL = _____________L K H D B (meter) d c m (gram ) (liter)
Convert the following: 4.6mg = ____________ng 480 Mg = ___________kg 480 ng = _____________cg G x x M x x K H D B d c m x x µ x x n x x p (gram ) (liter) (meter)
Metric to Metric Conversion 1 km = 1000 meters 1 meter = 100 cm 1 meter = 1000 mm The units grams or liter can be substituted for meters.
Metric to Metric Conversion 1 km = 1000 meters 1 meter = 100 cm 1 meter = 1000 mm 1 kg = 1000 grams 1gram = 100 cg 1 gram = 1000 mg 1 kL = 1000 liters 1 liter = 100 cL 1 liter = 1000 mL
Conversion Units 1 inch = 2.54 cm 1 mile = 1.61 km 1 pound =.45 kilogram 1 quart =.95 liters 1 ml = 1 cm³
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