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Chapter 1
Introduction
29
Physics
Undergraduate 2
09/04/2011

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Cards

Term
what are the three main physical quantities used in mechanics
Definition
length (L), mass (M), time (T)
Term
what is the definition of the meter
Definition
the meter is defined as the distance is takes light to travel in a vacuum during a time interval of 1/ 299 792 458 seconds
Term
what power is deci-
Definition
10^(-1)
Term
what power is deka-
Definition
10^(1)
Term
what power is kilo-
Definition
10^(3) k
Term
what power is mega-
Definition
10^(6) M
Term
what power is giga-
Definition
10^(9) G
Term
what power is tera-
Definition
10^(12) T
Term
what power is peta-
Definition
10^(15) P
Term
what power is exa-
Definition
10^(18) E
Term
what power is micro-
Definition
10^(-6) u
Term
what power is nano-
Definition
10^(-9) n
Term
what power is pico-
Definition
10^(-12) p
Term
what are quarks
Definition
strong evidence indicates that protons, neutrons and electrons are composed of six smaller particles called quarks
Term
what are the SI units for area L^(2)
Definition
m^(2)
Term
what are the SI units for volume L^(3)
Definition
m^(3)
Term
what are the SI units for velocity (L/T)
Definition
m/s
Term
what are the SI units for acceleration (L/T^(2))
Definition
m/s^(2)
Term
work the problem (1.20e^(5) x 2e^(5))+1e^(3)=
Definition
2.41e^(5)
Term
when multiplying two or more quantites, the number of significant figures in the final product is
Definition
the same as the least accurate factors being combined, that is, the least accurate is the one with the least amount of significant figures
Term
when numbers are added, the number of decimal places in the final answer are
Definition
equal to the smallest number of decimal places of any term in the sum
Term
what is 123 + 5.35, mind the significant figures
Definition
128
Term
what does it mean to increase a quantity by three orders of magnitude
Definition
10^(3)= 1000
Term
give two examples of coordinate systems
Definition
cartesian coordinate system & plane polar coordinates
Term
what is sin theta
Definition

opposite theta/hypotenuse

 

y/r

Term
what is cos theta
Definition

side adjacent to theta/hypotenuse

 

x/r

Term
what is tan theta
Definition

opposite theta/adjacent to theta

 

y/x

Term
what is the pythagorean theorem
Definition
r^(2)=x^(2) + y^(2)
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