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Physical Science
Spring 2011, Brewton-Parker College, Professor Ann Calhoun
36
Science
Undergraduate 1
01/31/2011

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Cards

Term
Referent
Definition
that you refer to or think of a given property in terms of another more familiar object...ie: Sky Blue
Term
Measurement
Definition
process of comparing a property to a well-defined and agreed-upon referent
Term
Unit
Definition
What a well-defined and agreed-upon referent is referred to as.
Term
Standard Unit
Definition
When standards are established, the referent is referred to as this
Term
English system
Definition
Early referent units used by the ancient Greeks and then later by the English. It was based on Human Body Parts.
Term
Metric System
Definition
established by the French Academy and was created based on reference in nature not Human Body Parts.
Term
Fundamental Properties
Definition
Length, Mass, Time, and Charge
Term
Meter
Definition
Standard unit for length in the metric system.
Term
Kilogram
Definition
Standard unit for mass in the metric system. Kilo- means 1,000.
Term
Second
Definition
Standard Unit for time in the Metric system.
Term
Giga-
Definition
G; 1 Billion; 1,000,000,000
Term
Mega
Definition
M; 1 Million times the Unit; 1,000,000
Term
Kilo
Definition
k; 1,000
Term
Hecto
Definition
h; 100
Term
Deka
Definition
da; 10
Term
Deci
Definition
d; 1/10th
Term
Centi
Definition
c; 0.01
Term
Milli
Definition
m; 0.001
Term
Liter
Definition
Metric Unit commonly used to measure liquid volume
Term
Milliliter (mL)
Definition
Used for smaller amounts of liquid Volume.
Term
Data
Definition
Measurement information used to describe something.
Term
Volume
Definition
how much space an object occupies. L(W)H [length times width times height]
V = tk k=constant
Term
Area
Definition
the extent of a surface, L(W) [Length times Width]
Term
Ratio
Definition
Relationship between two numbers
Term
Density
Definition
the ratio of mass or weight of a substance per unit volume [p=density] p=mass/volume
Term
variable
Definition
a quantity that changes
Term
direct proportion
Definition
when two variables increase (or decrease) together in the same ratio
Term
inverse proportion
Definition
when one variable increases, while the second variable decreases in the same ratio
Term
What's the formula for mass density?
Definition
p = mass/volume
Term
What is the formula for weight density?
Definition
D = weight/volume
Term
Speed
Definition
speed = distance/time
Term
inertia
Definition
tendency of an object to remain in unchanging motion or at rest in the absence of an unbalanced force
Term
what's the formula for the average speed or magnitude of velocity?
Definition
v (with a line over it) = distance/time
Term
what is the formula for acceleration?
Definition
(final velocity - initial velocity)/(time)
; a = (vf-vi)/time
Term
What is the formula for average velocity?
Definition
average velocity = (final velocity + initial velocity)/(2); v[with a line over it] = (vf+vi)/(2)
Term
what is the formula for distance?
Definition
distance = 1/2(acceleration)(time)^2; d = 1/2 at^2 when vi = 0
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