Podcast
Questions and Answers
Which mass unit is defined by the mass of a Pt-Ir alloy cylinder?
Which mass unit is defined by the mass of a Pt-Ir alloy cylinder?
What is the standard unit for measuring time established in 1960?
What is the standard unit for measuring time established in 1960?
What is the relationship between 1 mile and its equivalent in kilometers?
What is the relationship between 1 mile and its equivalent in kilometers?
In dimensional analysis, what does the term 'dimension' refer to?
In dimensional analysis, what does the term 'dimension' refer to?
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How is density calculated from mass and volume in SI units?
How is density calculated from mass and volume in SI units?
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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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How many grams are in one kilogram?
How many grams are in one kilogram?
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How is the volume of a solid cube calculated if each edge has a length of 5.35 cm?
How is the volume of a solid cube calculated if each edge has a length of 5.35 cm?
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What is one of the basic quantities that the laws of physics are expressed in terms of?
What is one of the basic quantities that the laws of physics are expressed in terms of?
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Which quantity is used to define the standard of length since 1983?
Which quantity is used to define the standard of length since 1983?
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In the context of physics, the dimensions of length, mass, and time are represented by which symbols?
In the context of physics, the dimensions of length, mass, and time are represented by which symbols?
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What is the total weightage of the final exam in the evaluation scheme?
What is the total weightage of the final exam in the evaluation scheme?
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Which of the following chapters is allocated the greatest number of weeks in the course timeline?
Which of the following chapters is allocated the greatest number of weeks in the course timeline?
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What is the maximum mark obtainable from quizzes and assignments combined?
What is the maximum mark obtainable from quizzes and assignments combined?
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Which aspect of physics is addressed in Chapter 4 following Fluid Statics?
Which aspect of physics is addressed in Chapter 4 following Fluid Statics?
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What is the mark distribution for the oral exam in the course evaluation?
What is the mark distribution for the oral exam in the course evaluation?
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What is the value of the constant m derived from the equation where $a \propto r^{n} v^{m}$?
What is the value of the constant m derived from the equation where $a \propto r^{n} v^{m}$?
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From the dimensional analysis, what is the relationship that leads to the conclusion $1 = n + m$?
From the dimensional analysis, what is the relationship that leads to the conclusion $1 = n + m$?
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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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Which equation represents the relationship where gravitational force F is proportional to masses and inversely proportional to the square of distance?
Which equation represents the relationship where gravitational force F is proportional to masses and inversely proportional to the square of distance?
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What best describes the relationship $a \propto r^{n} \cdot v^{m}$ in terms of dimensional analysis?
What best describes the relationship $a \propto r^{n} \cdot v^{m}$ in terms of dimensional analysis?
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In the context of the given equations, what does the relationship $a = k r^{-1} v^{2}$ represent in dimensional terms?
In the context of the given equations, what does the relationship $a = k r^{-1} v^{2}$ represent in dimensional terms?
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How is the dimensional correctness of the equation $v = a t$ confirmed?
How is the dimensional correctness of the equation $v = a t$ confirmed?
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What mathematical relationship is represented by the equation $ LT^{-2} = L^{n}T^{-m}$?
What mathematical relationship is represented by the equation $ LT^{-2} = L^{n}T^{-m}$?
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What is the correct dimensional formula for momentum?
What is the correct dimensional formula for momentum?
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In dimensional analysis, which of the following quantities is dimensionally consistent with kinetic energy?
In dimensional analysis, which of the following quantities is dimensionally consistent with kinetic energy?
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If the dimensions of acceleration are LT-2, how do you express the dimensions of distance traveled in terms of time?
If the dimensions of acceleration are LT-2, how do you express the dimensions of distance traveled in terms of time?
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What is the dimension of potential energy derived from the formula P.E = mgh?
What is the dimension of potential energy derived from the formula P.E = mgh?
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What method is used to check the validity of a formula in dimensional analysis?
What method is used to check the validity of a formula in dimensional analysis?
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What are the dimensions for area?
What are the dimensions for area?
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If the distance 'x' is proportional to the square of time 't', what relationship does 'x' have with acceleration 'a' based on dimensional analysis?
If the distance 'x' is proportional to the square of time 't', what relationship does 'x' have with acceleration 'a' based on dimensional analysis?
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In the derived formula x = a t2, what aspect remains to be determined by other methods?
In the derived formula x = a t2, what aspect remains to be determined by other methods?
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Study Notes
Course Information
- Course title: Physics (F/R-001)
- Instructor: Dr. Mohaned Mohammed
- Department/University: School of Biotechnology, Badr University in Assiut
Lectures
- Delivery method: Face-to-face
Textbooks
- Physics for Scientists and Engineers, R.A. Serway and J.W. Jewett, 8th Edition, Thomson Books/Cole 2013
- College Physics, PAUL PETER URONE, ROGER HINRICHS, OpenStax
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: Physics and Measurement (2 weeks)
- Chapter 2: Statics and Torque (4 weeks)
- Mid-term Exam (1 week)
- Chapter 3: Fluid Statics (2 weeks)
- Chapter 4: Fluid Dynamics and its Biological and Medical Applications (2 weeks)
- Chapter 5: Physics of Hearing (2 weeks)
- Final Exam
Chapter 1: Physics and Measurements
- Topics:
- Standards of length, mass, and time
- Conversion of units
- Dimensional Analysis
1. Standards of Length, Mass, and Time
- Length: Based on the speed of light in a vacuum (since 1983)
- Meter: distance light travels in vacuum in 1/299,792,458 seconds
- Mass: Based on a platinum-iridium (Pt-Ir) alloy cylinder (since 1887)
- Kilogram: the mass of a specific Pt-Ir alloy cylinder
- Time: Based on the atomic clock (since 1960)
- Second: the characteristic frequency of radiation from a cesium-133 atom
2. Conversion of Units
- Converting between different systems of units (e.g., cgs, mks, British Engineering)
3. Dimensional Analysis
- Dimension: the physical nature of a quantity
- Basic quantities in mechanics: Length (L), Mass (M), Time (T)
- Dimension of several physics quantities are shown (e.g., area, volume, velocity, acceleration, momentum, kinetic energy, potential energy)
- Method to check the validity of a formula, and derive formulas
- Examples provided on how to apply dimensional analysis
Quick Quizzes
- Quick Quiz 1.1: Identifying the larger of two cams made of different materials, considering their similar mass
- Quick Quiz 1.2: Determining if dimensional analysis can provide the numerical value of constants in algebraic expressions
- Quick Quiz 1.3: Calculating the distance between two cities in kilometers, given the distance in miles
Answers to Quick Quizzes
-
Quick Quiz 1.1 Answer: Aluminum cam
-
Quick Quiz 1.2 Answer: False (dimensional analysis only provides units)
-
Quick Quiz 1.3 Answer: Larger than 100
HW-1 Serway Version 6 P. 15 and 17
- Problem 15: Identifying dimensionally correct equations involving velocity, acceleration, distance
- Problem 17: Determining the SI units of the proportionality constant (G) in Newton's law of universal gravitation
Additional Homework problems
- Problem 17 and other problems are provided
Other Topics
- Units analysis (International System (SI))
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Description
Test your knowledge on the fundamentals of Physics and Measurements with our quiz focused on the first chapter of the course. This quiz covers key concepts such as standards of length, mass, time, and unit conversions. Challenge yourself to see how well you understand these foundational topics!
