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Sci: Metric System

Key terms and examples for measuring in the metric system

QuestionAnswer
What is the metric system? a system of measurement based on the number 10
Modern scientists use a version of the metric system called ___________ (abbreviated ____). International System (SI)
What are the advantages of scientists using SI as the standard system of measurements? Scientists can compare data and communicate with each other about their results accurately without having to convert all the measurements.
What number does the prefix "deka-" refer to? 10
What number does the prefix "hecto-" refer to? 100
What number does the prefix "kilo-" refer to? 1,000
What number does the prefix "deci-" refer to? 0.1 (one tenth)
What number does the prefix "centi-" refer to? 0.01 (one hundredth)
What number does the prefix "milli-" refer to? 0.001 (one thousandth)
What prefix refers to the number 10? deka-
What prefix refers to the number 100? hecto-
What prefix refers to the number 1,000? kilo-
What prefix refers to the number 0.1? deci-
What prefix refers to the number 0.01? centi-
What prefix refers to the number 0.001? milli-
How do you convert a metric unit to the next size LARGER? divide by 10
How do you convert a metric unit the the next size SMALLER? multiply by 10
What is length? the distance from one point to another
In the SI (metric) system, what is the basic unit to measure length? meter
1 meter = _______ centimeters 100 cm
What tool is used to measure length? metric ruler
What is mass? the measure of the amount of matter an object contains (weight)
In the SI (metric) system, what is the basic unit to measure mass? kilogram
1 kilogram = ______ grams 1,000 grams
What tool is used to measure mass? triple beam balance
What is the definition of weight? a measure of the force of gravity acting on an object
What is volume? the amount of space an object takes up
In the SI (metric) system, what is the basic unit to measure volume? liter
1 liter = _____ milliliters 1,000 milliliters
What tool is used to measure volume? graduated cylinder
What is the formula to measure volume of a rectangular solid? V=LxWxH (volume = length x width x height)
Which unit of measurement below would be best used for volume of a solid object? (A) cubic meter (B) cubic gram (C) liter (D) cubic centimeter (D) cubic centimeter
What is a method that you could use to measure the volume of an irregular solid? immerse the object in water and measure how much water is displaced
What is density? a measure that compares the mass of an object to its volume
What is the formula to measure density of an object? D=m/v (density = mass divided by volume)
Which 2 units of measure would best be used for density? (A) grams per milliliter (B) cubic grams (C) grams per cubic centimeter (D) cubic centimeter (A) grams per milliliter (C) grams per cubic centimeter
Is the density of an substance the same for all samples of the substance? No
An object will float if it is ______ (less or more) dense than the surrounding liquid. less dense
What is the SI unit used to measure time? second
1 second = 1,000 ________ milliseconds
What is temperature? the measure of how hot or cold something is
What is the temperature scale that scientists commonly use?
What is the official SI unit for temperature? Kelvin
What is true about the Kelvin scale?
What is an equation that shows how two units of measurement are related? conversion factor
What is the abbreviation for kilometers? km
What is the abbreviation for meters? m
What is the abbreviation for centimeters? cm
What is the abbreviation for millimeters? mm
What is the abbreviation for grams? g
What is the abbreviation for kilograms? kg
What is the abbreviation for liters? L
What is the abbreviation for milliliters? mL
Give an example of the approximate length of a millimeter. the thickness of a credit card OR the thickness of your fingernail
Give an example of the approximate length of a centimeter. the metal band on a pencil eraser OR the width of your pinky fingernail
Give an example of the approximate length of a meter. the height from the floor to a door knob
Give an example of the approximate length of a kilometer. a road
What metric unit would you use to measure a the width of a sheet of paper? centimeters
What metric unit would you use to measure the height of a mountain? kilometers
What metric unit would you use to measure the height of a house? meters
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