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Lecture Unit 1
Intro/Unit 1
37
Physics
Undergraduate 1
08/21/2007
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Term
What is Physics? (Three definitions from least to more specific)
 Definition
1.Study of Everything
2.Study of matter and energy
3.Study of relationships between physical quantities.
Term
What is matter? (simplest definiton)
 Definition
It is stuff.
Term
What is energy? (Simplest definition)
 Definition
It is what changes stuff.
Term
What is Physical Quantities? (Simplest definition)
 Definition
Things you can measure
Term
What is a constant?
 Definition
A physical quantity that does not change.
Term
What is a Variable?
 Definition
A physical quantity that changes.
Term
Lenght, Time, and Mass are all examples of what type of variable?
 Definition
Fundamental
Term
Speed, Density, Acceleration, force, energy, and Volume are all types of what kind of Variables?
 Definition
Derived
Term
Speed=?
 Definition
Length/Time
Term
Density=?
 Definition
mass/volume
Term
Volume of a square can be found by what formula?
 Definition
Length times Width times Height
Term
Volume of a cylinder can be found by what formula?
 Definition
Volume= pie times the radius square times height
Term
define measurement
 Definition
an act of comparison
Term
What are the three requirements for measurement?
 Definition
A Standard, Scale, and Units
Term
What are the two primary units of measurement?
 Definition
British and SI(metric)
Term
Prefix for 10^-9
 Definition
nano(n)
Term
prefix for 10^-6
 Definition
micro(µ)
Term
prefix for 10^-3
 Definition
milli(m)
Term
Prefix for 10^-2
 Definition
centi(c)
Term
Prefix for 10^-1
 Definition
deci(d)
Term
prefix for 10
 Definition
deka(da)
Term
Prefix for 10^2
 Definition
hecto(h)
Term
Prefix for 10^3
 Definition
kilo(k)
Term
Prefix for 10^6
 Definition
mega(M)
Term
Length in SI
 Definition
metre(m)
Term
mass in SI
 Definition
kilogram(kg)
Term
time in SI
 Definition
second(s)
Term
* electric current in SI
 Definition
ampere(A)
Term
* temperature in SI
 Definition
kelvin(K)
Term
* amount of substance in SI
 Definition
mole(mol)
Term
Force in SI
 Definition
newton(Nt)
Term
Energy in SI
 Definition
joule(J)
Term
Length in British
 Definition
foot(ft)
Term
Time in British
 Definition
second(s)
Term
Mass in British
 Definition
slug
Term
Force in British
 Definition
pound(lb)
Term
Energy in British
 Definition
foot-pound(ft•lb)
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