Measurements Flashcards
What measurement system are length, gallons, and pounds under?
English System
What measurement system are meters, liters, and grams under?
Metric System
Feet measures?
Length
Gallons measure?
Volume
Pounds measure?
Weight
Meters measure?
Length
Liters measure?
Volume
Grams measure?
Mass
Every type of measurement has a ____ ____.
Base unit
Other units have a base power of?
10
The prefix of the unit name indicates if the unit is ______.
Larger
What is the meaning, numerical value, and scientific notation of mega (M)?
Million - 1,000,000 - 10⁶
What is the meaning, numerical value, and scientific notation of kilo (k)?
Thousand - 1,000 - 10³
What is the meaning, numerical value, and scientific notation of deci (d)?
Tenth - 0.1 - 10^-1
What is the meaning, numerical value, and scientific notation of centi (c)?
Hundredth - 0.01 - 10^-2
What is the meaning, numerical value, and scientific notation of milli (m)?
Thousandth - 0.001 - 10^-3
What is the meaning, numerical value, and scientific notation of micro (h)?
Millionth - 0.000 001 - 10^-6
What is the meaning, numerical value, and scientific notation of nano (n)?
Billionth - 0.000 000 001 - 10^-9
____ is a measure of the amount of matter in an object.
Mass
______ is the force that matter feels due to gravity.
Weight
1 kilogram (k) = * grams (g)
1,000 g
1 miligram (mg) = * grams (g)
0.001 g
1 kiloliter (kL) = * liters (L)
1,000 L
1 milliliter (mL) = * liter (L)
0.001 L
What is the formula of volume?
Volume = length × width × height
Length (l) = 11 cm
Width (w) = 5 cm
Height (h) = 10 cm
What is the volume?
550 cm³
1 mL = * cm³ = 1 *
1 cm³ (cubic centimeter) = 1 cc (cubic centimeter)
An _____ ______ results from counting objects or is part of a definition.
Exact number
An _______ ______ results from a measurement or observation and contains some uncertainty.
Inexact number
These are all the digits in a measured
number including one estimated digit.
Significant figures
All _______ digits are always significant.
Nonzero
A zero is a significant number when It’s between two _______ digits.
Nonzero
A zero is a significant number when it’s at the ___ of a number with a decimal place.
End
A zero is not a significant figure when it occurs at the ________ of a number.
Beginning
A zero is not a significant figure when it occurs at the end of a number that does not have a _______.
Decimal
How many significant figures does 41.06 have?
4 sig. figures
How many significant figures does 2.6700 have?
5 sig. figures
How many significant figures does 0.078 have?
2 sig. figures
How many significant figures does 390. have?
3 sig. figures
How many significant figures does 2400 have?
2 sig. figures
Rules for Multiplication & Division: The answer has the same number of significant figures as the original number with the ______ significant.
Fewest
Round off 63.854545.
64
Rules for Addition & Subtraction: The answer has the same number of decimal placed as the original number with the ______ decimal places.
Fewest
The given are: 9.08 and 5.1
How many significant figures should the answer have?
9.08 = 3 sig. figures
5.1 = 2 sig. figures
= 2 sig. figures
In scientific notation, a number is written as: y × 10^x
y is the “ “, while ^x is the “ “.
y = coefficient
^x = exponent
A coefficient is a number between _ and _.
1 and 10
To convert a standard number to a scientific notation, move the decimal point to give a number _______ 1 and 10.
Between
To convert a standard number to a scientific notation, move the decimal point to give a number between _ and __.
1 and 10
To convert a standard number to a scientific notation, move the decimal point to give a number
between 1 and __.
Standard Number to Scientific Notation: x is the number of places the _______ was moved.
Decimal
Standard Number to Scientific Notation: When the decimal is moved to the left, the exponent (x) is ________.
Positive
Standard Number to Scientific Notation: When the decimal is moved to the right, the exponent (x) is ________.
Negative
Standard Number to Scientific Notation: 2500, x = *?
2.5, x = 3
Standard Number to Scientific Notation: 0.068, x = *?
6.8, x = -2
Scientific Notation to a Standard Number: When the exponent (x) is positive, move the decimal point x places to the _____.
Right
Scientific Notation to a Standard Number: When the exponent (x) is ________, move the decimal point x places to the right.
Positive
Scientific Notation to a Standard Number: When the exponent (x) is negative, move the decimal point x places to the ____.
Left
Scientific Notation to a Standard Number: When the exponent (x) is ________, move the decimal point x places to the left.
Negative
Scientific Notation to a Standard Number: 1.700 × 10², x = *?
x = 170.0
Scientific Notation to a Standard Number: 1.70 × 10^-2, x = *?
0.0170
Original Quantity × Conversion Factor = ?
Desired Quantity
Original Quantity × ? = Desired Quantity
Conversion Factor
Conversion factors are usually written as __________.
Equalities
A term that converts a quantity in one unit to a quantity in another unit.
Conversion Factor
Using conversion factors to convert a quantity in one unit to a quantity in
another unit.
Factor-label Method
Make sure all unwanted units ______.
Cancel
Always arrange the factors so that the denominator in one term cancels the _________ in the preceding term.
Numerator
2 pints = * quart
1 quart
1.06 quarts = * liter
1 liter
Write the answer with the correct number of
___________ _______.
Significant Figures
It is a measure of how hot or cold an object is.
Temperature
What is the formula to convert from C to
F?
F = 1.8(C) + 32
What is the formula to convert from C to
K?
K = C + 273
What is the formula to convert from F to
C?
C = (F − 32) / 1.8
What is the formula to convert from K to C?
C = K − 273
To convert from K to F, you must first convert from _ to _.
K to C
To convert from F to K, you must first convert from _ to _.
F to C
What is the boiling point of water in C, F, and K?
C = 100
F = 212
K = 373
What is the normal body temperature in C, F, and K?
C = 37
F = 98.6
K = 310
What is the freezing point of water in C, F, and K?
C = 0
F = 32
K = 273
What is the absolute zero in C, F, and K?
C = -273
F = -460
K = 0
A physical property that relates the mass of
a substance to its volume.
Density
What is the formula to convert volume (mL) to mass (g)?
mL × g/mL = g
What is the formula to convert mass (g) to volume (mL)?
g × mL/g = mL
g × mL/g = mL is the formula for the _______ of density.
Inverse
What is the unit of density for liquids?
g/mL
A quantity that compares the density of a substance with the density of water at the same temperature.
Specific Gravity
Specific gravity is a quantity that compares the density of a substance with the density of _____ at the same ___________.
Water, Temperature
The specific gravity of a substance is equal to its _______, but contains no units.
Density
The specific gravity of a substance is equal to its density, but contains no _____.
Units