Podcast
Questions and Answers
Which of the following is NOT one of the basic quantities in mechanics?
Which of the following is NOT one of the basic quantities in mechanics?
What is the standard of length based on?
What is the standard of length based on?
What is the value of 1 meter as defined since 1983?
What is the value of 1 meter as defined since 1983?
Which of the following represents a basic quantity of mass?
Which of the following represents a basic quantity of mass?
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What is the context in which the standards of length, mass, and time are expressed?
What is the context in which the standards of length, mass, and time are expressed?
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What is the mass standard based on since 1887?
What is the mass standard based on since 1887?
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Which of the following chapters covers Fluid Dynamics and Its Biological and Medical Applications?
Which of the following chapters covers Fluid Dynamics and Its Biological and Medical Applications?
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In the evaluation structure, what is the lowest weight assigned to an assessment?
In the evaluation structure, what is the lowest weight assigned to an assessment?
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What unit is used to measure time in the International System of Units (SI)?
What unit is used to measure time in the International System of Units (SI)?
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How is the second defined in the context of atomic clocks?
How is the second defined in the context of atomic clocks?
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Which of the following quantities has the dimension of $L^2$?
Which of the following quantities has the dimension of $L^2$?
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What is the SI unit for measuring electric current?
What is the SI unit for measuring electric current?
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Which expression correctly represents the dimension of kinetic energy?
Which expression correctly represents the dimension of kinetic energy?
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What is the relationship between potential energy and kinetic energy in classical mechanics?
What is the relationship between potential energy and kinetic energy in classical mechanics?
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In the context of dimensional analysis, which of the following correctly describes velocity?
In the context of dimensional analysis, which of the following correctly describes velocity?
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According to dimensional analysis, which of the following quantities has the dimension of $MLT^{-1}$?
According to dimensional analysis, which of the following quantities has the dimension of $MLT^{-1}$?
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What is the purpose of dimensional analysis in formula evaluation?
What is the purpose of dimensional analysis in formula evaluation?
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What does the formula for distance travelled, $x = rac{1}{2} at^2$, suggest about the relationship between distance, acceleration, and time?
What does the formula for distance travelled, $x = rac{1}{2} at^2$, suggest about the relationship between distance, acceleration, and time?
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In dimensional analysis, if the left-hand side (L.H.S) represents distance with the dimension $[L]$, what should the right-hand side (R.H.S) dimensions equal?
In dimensional analysis, if the left-hand side (L.H.S) represents distance with the dimension $[L]$, what should the right-hand side (R.H.S) dimensions equal?
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When deriving a formula using dimensions, what is the main assumption made about the factors affecting distance?
When deriving a formula using dimensions, what is the main assumption made about the factors affecting distance?
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In the expression $a = kr^{-1}v^{-2}$, what does the negative exponent on $r$ indicate?
In the expression $a = kr^{-1}v^{-2}$, what does the negative exponent on $r$ indicate?
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What happens to the values of n and m when determining the powers affecting acceleration in the dimensional equation?
What happens to the values of n and m when determining the powers affecting acceleration in the dimensional equation?
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Why might it be necessary to convert units in dimensional analysis?
Why might it be necessary to convert units in dimensional analysis?
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What is the derived formula for distance when both acceleration and time are considered in the equation?
What is the derived formula for distance when both acceleration and time are considered in the equation?
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What is the volume of a solid cube with each edge measuring 5.35 cm in basic SI units?
What is the volume of a solid cube with each edge measuring 5.35 cm in basic SI units?
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How is density calculated for the solid cube with a mass of 856 g?
How is density calculated for the solid cube with a mass of 856 g?
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Which of the following equations is dimensionally correct?
Which of the following equations is dimensionally correct?
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What are the SI units of the proportionality constant G in Newton’s law of universal gravitation?
What are the SI units of the proportionality constant G in Newton’s law of universal gravitation?
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What is the formula for the period of a pendulum in relation to its length?
What is the formula for the period of a pendulum in relation to its length?
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Convert 5.35 cm to meters using the appropriate conversion factor.
Convert 5.35 cm to meters using the appropriate conversion factor.
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If the mass of an object is 0.856 kg and its volume is 1.53 x 10^-4 m³, what is the density?
If the mass of an object is 0.856 kg and its volume is 1.53 x 10^-4 m³, what is the density?
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What is the relationship between gravitational force and distance in Newton’s law of universal gravitation?
What is the relationship between gravitational force and distance in Newton’s law of universal gravitation?
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Study Notes
Biophysics Course
- Instructor: Dr. Mohaned Mohmmed
- Institution: Badr University, Assiut
- Course Delivery: Face-to-face lectures
-
Textbooks:
- Physics for Scientists and Engineers by R.A. Serway and J.W. Jewett, 8th Edition, Thomson Books/Cole 2013
- College Physics by Paul Peter Urone, Roger Hinrichs, OpenStax
Course Evaluation
- Mid-term exam: 10 marks
- Quizzes/Assignments: 10 marks
- Practical exam: 20 marks
- Oral exam: 10 marks
- Final exam: 50 marks
Course Topics & Timeline
- Chapter 1 (2 weeks): Physics and Measurement
- Chapter 2 (4 weeks): Statics and Torque (Mid-term exam)
- Chapter 3 (2 weeks): Fluid Statics
- Chapter 4 (2 weeks): Fluid Dynamics and Biological/Medical Applications
- Chapter 5 (2 weeks): Physics of Hearing
- Final Exam: (Time not specified)
Chapter 1: Physics and Measurement
-
Topics:
- Standards of length, mass, and time
- Dimensional Analysis
- Conversion of units
1. Standards of Length, Mass, and Time
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Length: Based on the speed of light in a vacuum (since 1983).
- 1 meter is the distance light travels in a vacuum in 1/299,792,458 of a second.
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Mass: Based on the mass of a platinum-iridium (Pt-Ir) alloy cylinder (since 1887).
- 1 kilogram is the mass of this specific alloy cylinder.
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Time: Based on the atomic clock (since 1960).
- 1 second is based on the characteristic frequency of radiation from a Cesium-133 (Cs133) atom.
2. Dimensional Analysis
- Dimensions: Represent the physical nature of a quantity.
- Basic Quantities in Mechanics: Length (L), Mass (M), Time (T)
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Examples:
- Area: L²
- Volume: L³
- Velocity: LT⁻¹
- Acceleration: LT⁻²
3. Conversion of Units
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Examples:
- 1 mile = 1609 meters
- 1 foot = 0.3048 meters
- 1 inch = 0.0254 meters
- 1 kg = 1000 grams
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Description
Test your knowledge on the fundamentals of physics and measurement with this quiz based on Chapter 1 of the Biophysics course. Explore topics such as standards of length, mass, and time, alongside dimensional analysis. Prepare to solidify your understanding of essential concepts crucial for scientific study.
