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Physics Applied to Radiology   Chapter 3 Fundamentals of Physics
Physics ,[object Object],[object Object],[object Object],[object Object]
Matter ,[object Object],[object Object],[object Object],[object Object]
Energy ,[object Object]
Math ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Significant Figures
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Significant Figures
Accuracy vs. Precision  ,[object Object],[object Object],[object Object],[object Object]
Example ,[object Object],[object Object],[object Object],[object Object]
Rounded Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object]
Rounded Number ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rounding Rules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rounding Example 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rounding Example 2 ,[object Object],[object Object],[object Object],[object Object]
Numerical Relationships ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Numerical Relationships ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Numerical Relationships (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Numerical Relationships (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Graphs ,[object Object],[object Object],[object Object],x-axis y-axis
Graphic Relationships  ( on linear graph paper) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Evaluating Graphed Information ,[object Object],[object Object],[object Object]
Example #1 ,[object Object]
Example #1  (evaluated) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example #2 ,[object Object]
Quantities & Units ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unit Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Converting Units ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Dimensional Prefixes   Bushong, table 2-3 (pg 23) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rules for Using Prefixes ,[object Object],[object Object]
Base Quantities & Units (SI) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Derived Quantities & Units ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Derived Quantities with Named Units ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solving Problems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mechanics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Measuring Quantities in Mechanics ,[object Object],[object Object],[object Object],[object Object],run 2 km vs run 2 km east
Vector Addition/Subtraction ,[object Object],[object Object],F 1 F 2 F 1   +   F 2   = Net force
Quantities in Mechanics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Speed (cont.) d in m t  in s v = m/s same at  all times total distance total time General Formula: Variations: instantaneous uniform average v at 1 point in time v  =  d  t distance time
Speed Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Velocity ,[object Object],[object Object],[object Object]
Acceleration ,[object Object],[object Object],[object Object],[object Object], v  =  v f   - v i units v in  m/s t  in s a = m/s 2 a  =   v   t
Acceleration Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Application of  v  and  a  in Radiology ,[object Object],[object Object],[object Object]
Newton's Laws of Motion ,[object Object],[object Object],[object Object]
Newton's First Law ,[object Object],[object Object],[object Object],[object Object]
Inertia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Newton's 2nd Law (Force) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mechanical Force ,[object Object],[object Object],[object Object],[object Object],[object Object],Vector sum
2nd Law (Force) ,[object Object],[object Object],[object Object],[object Object],Newton  N a =     v    t kg m s 2 ,[object Object]
Example Problem for 2nd Law ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example 2: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Weight ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Weight (cont.) ,[object Object],[object Object],[object Object],[object Object],Newton  N kg m s 2 units    kg   x  m/s 2
Weight Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Weight Problem #2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
3rd Law (Recoil) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A B
Momentum  (Linear) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],kg m s
Momentum vs. Mass (Inertia) ,[object Object],[object Object],Direct proportional relationship  m  =   p  m =     p
Momentum vs. Velocity ,[object Object],[object Object],Direct proportional relationship 50 km/hr  v  =   p 100 km/hr  v =     p
Momentum Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Momentum Problem #2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conservation Laws ,[object Object],[object Object],[object Object],[object Object],[object Object]
Conservation of Linear Momentum ,[object Object],[object Object],[object Object],[object Object]
Example before collision collision occurs after collision m 1 v 1 = 1 kg m/s mv = 0 mv = 0 m 2 v 2 = 1 kg m/s
Example #2 m 1 v 1 = 5 kg m/s mv = 0 m 2 v 2 = 5 kg m/s before collision collision occurs after collision m 2  =  m A  +  m B   v 2  =  v A   +  v B A B A B
Work ,[object Object],[object Object],[object Object],F d
Work (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],kg m s 2   x  m kg m 2 s 2   =  Joule  J =
Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example #2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Kinetic Energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],kg m 2 s 2   =  Joule  J =
Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Potential Energy  ,[object Object],[object Object],[object Object],[object Object],[object Object]
Gravitational Potential Energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],h g m =  Joule  J kg m 2 s 2
Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rest Mass Energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],kg m 2 s 2   = Joule  J =
Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conservation Of Energy  (Matter) ,[object Object],[object Object],[object Object]
Power ,[object Object],[object Object],[object Object],[object Object]
Power (cont.) ,[object Object],[object Object],[object Object],[object Object],kg m 2 s 3   =  Watt  W = kg m 2 s 2   = s
Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Heat energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Heat Transfer ,[object Object],[object Object],[object Object],[object Object],[object Object]
conduction ,[object Object],[object Object],[object Object],[object Object]
convection ,[object Object],[object Object]
radiation ,[object Object],[object Object],[object Object]
Heat Radiation ,[object Object],[object Object]
Effects of Heat Transfer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Temperature Scales ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Radiation physics 2

  • 1. Physics Applied to Radiology Chapter 3 Fundamentals of Physics
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  • 38. Speed (cont.) d in m t in s v = m/s same at all times total distance total time General Formula: Variations: instantaneous uniform average v at 1 point in time v = d t distance time
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  • 65. Example before collision collision occurs after collision m 1 v 1 = 1 kg m/s mv = 0 mv = 0 m 2 v 2 = 1 kg m/s
  • 66. Example #2 m 1 v 1 = 5 kg m/s mv = 0 m 2 v 2 = 5 kg m/s before collision collision occurs after collision m 2 = m A + m B v 2 = v A + v B A B A B
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