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Questions and Answers
What is the definition of elastic modulus?
What is the definition of elastic modulus?
Which type of stress is best characterized by the shear modulus?
Which type of stress is best characterized by the shear modulus?
What does bulk modulus measure in materials?
What does bulk modulus measure in materials?
Why are bones considered brittle materials?
Why are bones considered brittle materials?
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What is the primary function of body levers?
What is the primary function of body levers?
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What is a base quantity in physics?
What is a base quantity in physics?
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Which of the following statements best describes derived quantities?
Which of the following statements best describes derived quantities?
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Which component is essential for ultrasound imaging?
Which component is essential for ultrasound imaging?
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What does the Doppler effect explain in terms of sound?
What does the Doppler effect explain in terms of sound?
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What aspect is considered under human energy metabolism?
What aspect is considered under human energy metabolism?
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Study Notes
Introduction to Biophysics
- Course for 1st grad Faculty of physical therapy
- Prepared by Dr. Alaa Hassan Said, Associated professor of Biophysics, Physics department – Faculty of Science, South Valley University
- Academic year 2024/2025
Table of Contents (Chapter 1)
- Physical Quantities (page 4)
- Quantitative and qualitative quantities (page 5)
- Scalars and Vectors quantities (page 6)
- The Role of Units (page 6)
- Divisions of units (page 7)
- Fundamental Units (Basic Units) (page 7)
- Derived Units (page 7)
- The international systems of units (page 7)
- Metric Prefixes (page 8)
- Dimensional Analysis (page 9)
- Accuracy and Precision (page 12)
Table of Contents (Chapter 2)
- Physical properties of materials (page 15)
- Elasticity vs plasticity (page 16)
- Elasticity - Stress and Strain (Hooke's law) (page 19)
- Stress vs. Strain Curves (page 20)
- Elastic Modulus (page 21)
- Sideways Stress: Shear Modulus (page 24)
- Changes in Volume: Bulk Modulus (page 26)
- Elasticity of the human bone and tendon (Page 29)
- Brittle Bones (page 31)
- Strength of Human Bones (page 35)
- The Femur (page 35)
- Compression (page 36)
- Tension (page 36)
- Stress (page 37)
- Ultimate Strength of the Femur (page 38)
- Transverse Ultimate Strength (page 38)
- Body Levers (page 39)
- Lever Classes (page 40)
- Levers in the body (page 44)
- Pressure (page 45)
- Units, Equations and Representations (page 46)
- Pressure in Liquids and Gases: Fluids (page 46)
- Variation of Pressure with Depth (page 47)
- Gauge Pressure and Atmospheric Pressure (page 47)
- Atmospheric Pressure (page 47)
- Gauge Pressure (page 48)
Table of Contents (Chapter 3)
- Heat and temperature in the human body (page 69)
- Basic concepts of temperature and heat (page 70)
- Temperature scales (page 70)
- Thermometers (page 72)
- Heat transfer modes (page 73)
- Conduction (page 73)
- Convection (page 73)
- Radiation (page 74)
- Specific Heat (page 74)
- Heat capacity (page 75)
- Latent heat (page 75)
- Temperature measurements in healthcare (page 76)
- Thermography (page 76)
- IRT in medical science (page 77)
- Work, Energy, and Power in Humans (page 80)
- Energy Conversion in Humans (page 80)
- Power Consumed at Rest (page 81)
- How is energy stored in the body? (page 81)
- Human Energy Metabolism (page 85)
Table of Contents (Chapter 4)
-
Sound waves in medicine (page 90)
- What is Sound? (page 91)
- Definitions (page 91)
- Characteristics of Sound (page 92)
- Speed of Sound (page 94)
- Human Hearing (page 96)
- Hearing Aid (page 98)
- The Doppler effect (page 98)
- Ultrasound imaging (page 98)
- Ultrasound waves (page 99)
- Types of Transducers (page 101)
- Components of an Ultrasound Machine (page 105)
- Resolution (page 106)
- Doppler Ultrasound (page 107)
- Risks and side-effects (page 109)
-
Quizzes (page 68, 89, 110)
-
References (page 111)
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Description
This quiz explores key concepts in the physics of materials, including elastic modulus, shear modulus, and bulk modulus, as well as fundamental principles of energy metabolism in humans. Test your knowledge on the properties of materials and the physiology of body mechanics.
