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48 Cards in this Set

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Base Quantity: Length
Name of Unit: Meter (m)
Base Quantity: Mass
Name of Unit: kilogram (kg)
Base Quantity: Time
Name of Unit: second (s)
Base Quantity: Electrical current
Name of Unit: ampere (A)
Base Quantity: Temperature
Name of Unit: kelvin (K)
Base Quantity: Amount of substance
Name of Unit: mole (mol)
Base Quantity: Luminous intensity
Name of Unit: candela (cd)
Mass is a measure of the quantity of matter in an object.
Define MASS
Weight is the force that gravity exerts on an object.
Define WEIGHT
10^12
T tera-
10^9
G giga-
10^6
M mega-
10^3
k kilo-
10^-1
d deci-
10^-2
c centi-
10^-3
m milli-
10^-6
u micro-
10^-9
n nano-
10^-12
p pico-
1 kg = 1000g = 1x10^3gram
mass
Volume is length(m)CUBED

1cm^3 = (1x10^-2m)^3
= 1x10^-6m^3
volume
A liter is the volume occupied by one cubic decimeter
liter
One liter = 1000 milliliter(L)

mL
mL
1 mL = 1 cm^3

One milliliter = one cubic centimeter
cubic centimeter
Density is the mass of an object divided by its volume

D = m/v
define density
Density is an intensive property. As such, does not depend on teh quantity of mass present. The ratio of density always remains the same for a given material - regardless of quantity.
density - an intensive property
SI unit for density is:
kg/m^3

Common unit is grams/milliliter: g/mL
(solid and liquid density)
SI unit for density
Fahrenheit scale:
freezing is 32F
boiling is 212F
Fahrenheit
Celsius scale:
freezing is 0C
boiling is 100C
Celcius
Kelvin scale: the official SI Unit for temperature. Absolute temperature scale.
0K is lowest theoretical temp
Kelvin scale
The size of a DEGREE on the Fahrenheit scale
5/9 of a degree on the Celsius scale
Formula to convert Fahrenheit degrees to Celsius

?C = (F-32F) x 5/9
?C = (F-32F) x 5/9
Formula to convert Celcius to Fahrenheit

?F = 9/5 x C + 32F
?F = 9/5 x C + 32F
T/F:

One degree of Celcius is equal in magnitude to one degree of Kelvin
true
What is absolute zero on the Kelvin scale = on the Celsius scale?
-273.15C
-273.15C
Convert Celcius to Kelvin:

?K = (C + 273.15C)x 1K/1C
?K = (C + 273.15C)x1K/1C
Regardless of magnitude, all numbers can be expressed as:

N x 10^n
N x 10^n
Scientific notation:
If the decimal is moved to the left, it is a ____integer.
If to right, it is a _____interger
Left ---positive integer

Right ---negative integer
T/F
In significant figures, it is assumed that the last digit is understood to be "uncertain"
T
Rules for Significant Digits:
- Any digit not a zero is significant.
- Zeros between nonzeros significant.
- Zeros to left are NOT significant.
- Zeros to right significant
- Trailing zeros (after last nonzero digit) may/may not be and needs scientific not.
significant digit rules
Add/Sub, answer cannot have more digits to the right of the decimal point than either of original numbers
T
Round-off procedure:
- Drop digits if less than 5
- Equal or greater than 5, round up
T
Mult/Div: #of signficant figures determined by the original number that has smallest # of signficant figures
T
Exact numbers obtained from definitions (eg 1ft = 12 in), or by counting # of objects ---- considered to have an infinite number of significant figures
T
Accuracy:
How close a measurement is to the true value of the quantity measured.
Accuracy
Precision:
How closely two or more measurements of the same quantity agree with one another.
Precision
Dimensional Analysis = Factor Label Method
Uses relationships between different units to express the same physical quantity
Dimensional analysis
Grams to Milligrams:

1x10^-3 = 1 mg
1000 mg = 1 gram