si u nits of m easure the metric system can you measure up?
TRANSCRIPT
1789 The French Revolution of
1789 sparked the invention of a new system of measurement
The French Academy of Sciences replaced customary units with the metric system.
Proper name: International System of Measurement
WHAT IS A METER?
A meter is 1/10 millionth of the distance from the equator to the North Pole.
Derived from the Greek word “metron” meaning: a distance.
Metric Units for: Mass: g Volume: L Length: m (cm) Temperature: °C
SI is NOT used in the United States! We still use the customary units of
measure SI is used for experiments because the
results are easily :UnderstoodInterpretedCommunicatedCompared
Neither SI nor US customary are more accurate!
US Customary units are easier to use, but SI is more universal.
WHAT IS THE ORDER OF THE METRIC SYSTEM?King Henry Died by Drinking
Chocolate MilkKing: KiloHenry: HectoDied: DecaBy: Base (m, L, g)Drinking: DeciChocolate: CentiMilk: Milli
HOW TO UNDERSTAND THE RULER: One side has inches. The other side is the metric side.
The big numbers represent centimeters The smaller lines represent millimeters. How many millimeters are in a
centimeter? 10
A meter? 1000 mm
UNITS OF MEASUREMENT:VOLUME
US Customary SystemCupsPintsQuartsGallonsFluid Ounces
Metric SystemLiters
Most commonly mL
cm3
[1mL=1cm3]
Mass is a measurement of how much matter is in an object.
Weight is the measure of the amount of gravity pulling down on the mass of the object.
Triple beam balance
The balance has three beams called rider beams. Each rider beam has a different mass suspended from it. These masses, called riders, can be moved left and right along the rider beams. By moving the riders, you can determine the mass of an object placed on the measurement tray.
beamsriders
rider
An adjustment knob is used to calibrate the balance. When no objects are sitting on the measurement tray, and all the riders are in their leftmost or 0 position, the pointer should be lined up with the zero mark. If it is not lined up with the zero mark, you would need to turn the adjustment knob until it is.
adjustmentknob
pointer zero markmeasurement tray
AREAArea is the number of unit squares that can be fitted into a 2-dimensional surface
Formula: A= L x W
DENSITYDensity is the measurement of the mass of a substance per unit volume.
Formula: D= mass volume(D=Mass divided by volume)
The density of water is 1 g/mLo If the density is > 1 g/mL: SINK
o If the density is < 1 g/mL: FLOAT (ex: ice/oil)
UNITS OF MEASUREMENT:TEMPERATURE
US Customary System° Farenheit
Metric System° Celsius (oC)Kelvin (K)
Temperature is the measurement of the heat of something on a scale. The basic unit of temperature in the metric system is Celsius or centigrade. Water freezes on the Celsius scale at 0° and boils at 100°. Temperature is measured with a thermometer.
Thermometer
Water at freezing point measured by a digital thermometer