Lesson 1 Flashcards
MEASUREMENT PROCESS ORF COMPARING A QUANTITY WITH A CHOSEN STANDARD
MEASUREMENT UNITS
➤ TIME-SECONDS, MINUTES, HOURS, DAYS, WEEKS MONTHS YEARS
➤ LENGTH-MILLIMETERS.. CENTIMETERS
WEIGHT GRAMS, KILOGRAM
VOLUME-CM5, M3, LITERS
➤ TEMPERATURE CENTIGRADE AND FARENHEIT
MEASUREMENT UNITS
• REQUIRED TO MEASURE ANY TYPE OF QUANTITY
MEASUREMENT INSTRUMENTS
• 3 SYSTEMS OF MEASUREMENTS
➤ INTERNATIONAL SYSTEM OF UNITS
➤ BRITISH IMPERIAL SYSTEM
➤ US CUSTOMARY SYSTEM
- IS A SET OF UNITS WHICH CAN BE USED TO SPECIFY ANYTHING
SYSTEM OF MEASUREMENT
- INTERNATIONALLY AGREED DECIMAL SYSTEM OF MEASUREMENT CREATED IN FRENCE IN 1799
METRIC SYSTEM
ANY KIND OF MEASURABLE QUANTITY
➤ BASE QUANTITIES
➤ DERIVED QUANTITIES
•PHYSICAL QUANTITY-
IT IS THE PROCESS OF CHANGING THE VALUE OF ONE FORM TO ANOTHER
CONVERSION OF UNITS
CLASSIC WAY OF DEMONSTRATING IS WITH A DARTBOARD
ACCURACY AND PRECISION
- HOW CLOSE THE MEASUREMENTO ARE TO THE TRUE VALUE
ACCURACY
DEGREE TO THE WHICH SUCCESSIVE MEASUREMENTS AGREE WITH EACH OTHER
PRECISION
ANY OF THE DIGITS OF A NUMBER
)
SIGNIFICANT FIGURES
MEASUREMET THAT COMPARES THE AMOUNT OF MATTER AN OBJECT HAS TO ITS VOLUME/HOW TIGHTLY (ARCHIMEDES)
DENSITY