Physics-DSC 1A Mechanics Quiz
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Questions and Answers

What is the maximum number of questions a candidate must answer from Section A?

  • Nine questions
  • Seven questions (correct)
  • Three questions
  • Five questions

Which of the following topics is included in Unit I of the course?

  • 2nd order homogeneous differential equations (correct)
  • Elastic collision
  • Quantum mechanics
  • Non-linear dynamics

What is the total marks allocated for the Continuous Comprehensive Assessment (CCA)?

  • 60 marks
  • 50 marks
  • 30 marks (correct)
  • 45 marks

How many questions from each unit must be selected for the examination?

<p>Two questions (B)</p> Signup and view all the answers

Which of the following is NOT a topic covered in Unit I?

<p>Thermodynamics (D)</p> Signup and view all the answers

What is the duration of the examination for PHYSICS-DSC 1A: MECHANICS?

<p>3 hours (D)</p> Signup and view all the answers

Which type of force is associated with non-inertial frames according to the course outline?

<p>Coriolis force (B)</p> Signup and view all the answers

What is a compulsory section in the examination that covers all units?

<p>Section A (C)</p> Signup and view all the answers

Which statement correctly describes the relationship between eccentricity and energy in an orbital motion?

<p>Higher eccentricity typically indicates a more elliptical orbit with variable energy. (D)</p> Signup and view all the answers

Which of the following best defines the term 'reduced mass' in classical mechanics?

<p>The mass of two bodies considered as one for the purpose of simplifying two-body problems. (B)</p> Signup and view all the answers

How does Newton's Law of Gravitation compare to the inverse square law?

<p>Gravitation is a special case of the inverse square law applicable only to masses. (B)</p> Signup and view all the answers

Which principle explains the concept of the center of mass in a system of particles?

<p>It acts as an average position of all masses in the system. (D)</p> Signup and view all the answers

According to Kepler's laws, which of the following is true about planetary orbits?

<p>The line segment joining a planet to the sun sweeps out equal areas in equal times. (D)</p> Signup and view all the answers

Flashcards

Differential Equations

Equations involving derivatives of a function.

Homogeneous Differential Equations (1st order)

Differential equations where a specific form allows solution by substitution.

Homogeneous Differential Equations (2nd order)

Differential equations of 2nd order with constant coefficients that are solvable by attempting solutions of the form e^(rt).

Coordinate Systems

Systems for representing positions in space, like Cartesian & Spherical.

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Inertial Frame

A frame of reference where Newton's laws of motion are valid.

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Galilean Transformation

Transformations relating coordinates in different inertial frames.

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Coriolis Force

A fictitious force that arises in non-inertial frames of references that rotates.

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Conservation Laws

Fundamental laws stating that certain quantities remain constant in isolated systems, related to symmetries of spacetime.

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Newton's Law of Gravitation

Describes the force of attraction between any two objects with mass. The force is directly proportional to the product of the masses and inversely proportional to the square of the distance between their centers.

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Inverse Square Force

A force that decreases proportionally to the square of the distance between the objects. For example, the gravitational force and the electrostatic force.

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Centre of Mass

The point where the entire mass of an object can be considered concentrated; it's the average position of all the mass in the object.

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Kepler's Laws

Three laws describing planetary motion: 1) Elliptical orbits, 2) Equal areas swept in equal times, 3) The square of the orbital period is proportional to the cube of the semi-major axis.

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GPS (Global Positioning System)

A satellite-based navigation system that uses radio signals from satellites to determine the location of a receiver on Earth.

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Study Notes

Course Information

  • Course Code: PHYS101 TH
  • Course Name: PHYSICS-DSC 1A: MECHANICS
  • Credits:
  • Theory Lectures: 60
  • Yearly Examination: 50 marks (3 hours)
  • Continuous Comprehensive Assessment (CCA): 30 marks

Continuous Comprehensive Assessment (CCA)

  • Based on midterm exam, class test/seminar/assignments/quiz and attendance
  • Theory: Midterm Exam = 10 marks, Class Test/Seminar/Assignments/Quiz = 05 marks

Examination Instructions

  • Question paper includes 5 sections: A (compulsory), B, C, D, and E
  • Section A (compulsory) covers all units. Question 1 will be compulsory and have 7 sub-questions (2 marks each).
  • Sections B, C, D, and E have 9 questions each. Choose 2 questions from each unit (9 marks each).
  • Each question in B,C,D, and E requires 09 marks.
  • Types of questions: Multiple Choice/Fill in the blanks/short answer type questions.
  • Total questions to attempt = 5 (1 from each of sections B, C, D, and E)
  • Exam duration is 3 hours.

Unit-I: Ordinary Differential Equations

  • 1st order homogeneous differential equations.
  • 2nd order homogeneous differential equations with constant coefficients (6 lectures)

Unit-II: Coordinate Systems and Motion

  • Coordinate systems (Cartesian, Spherical)
  • Motion of a particle, Volume, velocity, acceleration, Solid angle (6 lectures)

Unit-III: Space Time Symmetry and Conservation Laws

  • Relationship between conservation laws and symmetries of space and time. (4 lectures)

Unit-IV: Frames of Reference

  • Inertial frames of reference
  • Galilean transformation
  • Galilean invariance
  • Non-inertial frames - Coriolis force and applications
  • Foucault's pendulum (5 lectures)

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Description

Test your knowledge on Mechanics in the PHYS101 course. This quiz includes multiple choice and short answer questions, covering all units studied. Prepare to tackle questions that reflect the structure of the upcoming examination.

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