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?
- Force
- Temperature (correct)
- Length
- Mass
What is the standard of length based on?
What is the standard of length based on?
- Speed of light in vacuum (correct)
- Time measured by atomic clocks
- Mass of water
- Distance of the Earth to the Sun
What is the value of 1 meter as defined since 1983?
What is the value of 1 meter as defined since 1983?
- Distance travelled by light in vacuum during 1/299,792,458 seconds (correct)
- Distance travelled by light in one second
- Distance equal to 100 centimeters
- Distance equating to 39.37 inches
Which of the following represents a basic quantity of mass?
Which of the following represents a basic quantity of mass?
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?
What is the mass standard based on since 1887?
What is the mass standard based on since 1887?
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?
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?
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)?
How is the second defined in the context of atomic clocks?
How is the second defined in the context of atomic clocks?
Which of the following quantities has the dimension of $L^2$?
Which of the following quantities has the dimension of $L^2$?
What is the SI unit for measuring electric current?
What is the SI unit for measuring electric current?
Which expression correctly represents the dimension of kinetic energy?
Which expression correctly represents the dimension of kinetic energy?
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?
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?
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 $MLT^{-1}$?
What is the purpose of dimensional analysis in formula evaluation?
What is the purpose of dimensional analysis in formula evaluation?
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?
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?
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?
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?
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?
Why might it be necessary to convert units in dimensional analysis?
Why might it be necessary to convert units in dimensional analysis?
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?
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?
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?
Which of the following equations is dimensionally correct?
Which of the following equations is dimensionally correct?
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?
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?
Convert 5.35 cm to meters using the appropriate conversion factor.
Convert 5.35 cm to meters using the appropriate conversion factor.
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?
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?
Flashcards
Standard of length
Standard of length
The standard unit for length, defined as the distance light travels in a vacuum during a specific time interval.
Meter
Meter
The SI unit of length, equivalent to the distance light travels in a vacuum in 1/299,792,458 of a second.
Standard of mass
Standard of mass
The standard unit for mass, usually defined by a physical object.
Kilogram
Kilogram
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Physics and Measurement
Physics and Measurement
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Dimensional Analysis
Dimensional Analysis
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Conversion of Units
Conversion of Units
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Mechanics Basic Quantities
Mechanics Basic Quantities
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Dimensional Analysis
Dimensional Analysis
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Formula Validation (DA)
Formula Validation (DA)
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Formula Derivation (DA)
Formula Derivation (DA)
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Power Law Analysis (DA)
Power Law Analysis (DA)
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Units Conversion
Units Conversion
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Consistent Dimensions
Consistent Dimensions
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SI unit for time
SI unit for time
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Second (s) Definition
Second (s) Definition
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Mechanics Basic Quantities
Mechanics Basic Quantities
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Dimensional Analysis
Dimensional Analysis
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Dimension of area
Dimension of area
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Dimension of Velocity
Dimension of Velocity
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Dimension of Acceleration
Dimension of Acceleration
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Dimension of Kinetic Energy
Dimension of Kinetic Energy
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Dimension of Potential Energy
Dimension of Potential Energy
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Dimensional Analysis
Dimensional Analysis
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SI Units
SI Units
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Density (SI)
Density (SI)
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Dimensional Consistency (Formula)
Dimensional Consistency (Formula)
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Units of Force (SI)
Units of Force (SI)
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Units of Gravitational Constant (G)
Units of Gravitational Constant (G)
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Units of Pendulum Period
Units of Pendulum Period
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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
- 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.
- 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.
- 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)
- Examples:
- Area: L²
- Volume: L³
- Velocity: LT⁻¹
- Acceleration: LT⁻²
3. Conversion of Units
- Examples:
- 1 mile = 1609 meters
- 1 foot = 0.3048 meters
- 1 inch = 0.0254 meters
- 1 kg = 1000 grams
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