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PHY201

Classical Mechanics 1

  • Sciences
  • 200 level
  • 3 credit units
  • 62 pages
  • 28 units

This course introduces fundamental concepts of classical mechanics. It covers motion in central force fields, including vector analysis, conservative forces, and kinematics in polar coordinates. Students will explore energy conservation, planetary motion, and Kepler's laws. The course also delves into oscillatory motion, simple harmonic oscillators, damped and forced oscillations, and coupled oscillations. Finally, it introduces Lagrangian and Hamiltonian mechanics, frames of reference, generalized coordinates, and equations of motion.

About this course

Difficulty
Intermediate
Study hours
156 hours
Maths
Advanced
Content
Theoretical, problem solving
Practical work
No
Before you start
  • Basic Physics
  • Calculus
  • Differential Equations
How it is assessed
  • Assignments
  • Tutor marked assignments
  • Final examination

One paragraph, so you can see how it reads

PHY201 · Unit 1 Vector Analysis

The discusssion of motion in two or three dimensions is vastly simplified only when concept of vector calculus is introduced. In this unit you will need to refresh your knowledge of vector concepts from elementary mathematics before proceeding.

What you should be able to do

  1. Apply vector calculus to solve problems in classical mechanics.
  2. Analyze motion under central and conservative forces.
  3. Derive and apply Kepler's laws of planetary motion.
  4. Model and analyze simple harmonic, damped, and forced oscillations.
  5. Apply Lagrangian and Hamiltonian mechanics to solve complex mechanical problems.
  6. Understand the concepts of frames of reference and generalized coordinates.

What it prepares you for

Careers
  • Physicist
  • Mechanical Engineer
  • Aerospace Engineer
  • Data Scientist
  • Research Scientist
Where it is applied
  • Aerospace
  • Automotive
  • Robotics
  • Research and Development
  • Academia

Where it gets hard

The units students slow down on, and what makes each one heavy.

  • Module 1: Motion in Central Force Fields

    Unit 1: Vector Analysis

    Requires strong understanding of vector calculus, including gradient, divergence, and curl, which can be challenging for students without a solid mathematical background.

  • Module 3: Lagrange and Hamiltonian Meachanics

    Unit 3: Lagrange's Mechanics

    Lagrange's equations involve partial derivatives and require a good grasp of calculus and variational principles.

A suggested way through it

Suggested

13 weeks, about 45 hours in total. Yours will differ.

  1. Week 1Module 1: Motion in Central Force Fields
    • Unit 1: Vector Analysis · 3 hours

      Review vector position, addition, subtraction, and multiplication.. Practice calculating gradients, divergence, and curl.. Solve self-assessment exercises on vector manipulation..

  2. Week 2Module 1: Motion in Central Force Fields
    • Unit 2: Central – Conservative Forces · 3 hours

      Define central, conservative, and central-conservative forces.. Study the properties of central force fields and their implications.. Understand the work performed by conservative force fields..

  3. Week 3Module 1: Motion in Central Force Fields
    • Unit 3: Kinematics in Polar coordinates · 3 hours

      Learn to transform between Cartesian and polar coordinates.. Evaluate velocity and acceleration components in polar coordinates.. Solve problems involving motion in polar coordinates..

  4. Week 4Module 1: Motion in Central Force Fields
    • Unit 4: Energy Conservation in Central – Conservative Force Fields · 3 hours

      Derive the radial energy equation.. Apply energy conservation principles to central conservative force fields.. Solve problems using the radial energy equation..

  5. Week 5Module 1: Motion in Central Force Fields
    • Unit 5: Central – Conservative Force and Planetary Motion · 3 hours

      Review Kepler's laws of planetary motion.. Study motion in an inverse square law force field.. Relate Kepler's laws to Newton's laws of gravitation and motion..

  6. Week 6Module 2: Oscillatory Motion
    • Unit 1: Linear Simple Harmonic Osillator · 3 hours

      Understand the concept of simple harmonic motion (SHM).. Derive the equation of motion for SHM.. Study examples of SHM, such as a simple pendulum and a mass-spring system..

  7. Week 7Module 2: Oscillatory Motion
    • Unit 2: Conservation of Energy in SHM · 3 hours

      Find expressions for kinetic and potential energies in SHM.. Establish that total energy remains constant during SHM.. Solve problems involving energy conservation in SHM..

  8. Week 8Module 2: Oscillatory Motion
    • Unit 3: Damped Oscillatory Motion · 3 hours

      Derive the equation of motion for damped oscillatory motion.. Study the effects of damping on SHM.. Distinguish between underdamped, critically damped, and overdamped systems..

  9. Week 9Module 2: Oscillatory Motion
    • Unit 4: Forced Oscillatory Motion · 3 hours

      Derive the equation of motion for forced oscillatory motion.. Study the phenomenon of resonance.. Analyze the behavior of systems under external oscillatory forces..

  10. Week 10Module 2: Oscillatory Motion
    • Unit 5: Coupled Oscillation · 3 hours

      Establish equations of motion for two coupled oscillatory systems.. Determine normal frequencies and normal modes of vibration.. Solve problems involving coupled oscillations..

  11. Week 11Module 3: Lagrange and Hamiltonian Meachanics
    • Unit 1: Frame of Reference and Constraints of Motion · 3 hours

      Distinguish between inertial and non-inertial frames of reference.. Understand how to impose constraints on a system.. Study holonomic and non-holonomic constraints..

  12. Week 12Module 3: Lagrange and Hamiltonian Meachanics
    • Unit 2: Generalized Coordinates · 3 hours

      Define generalized coordinates and degrees of freedom.. Derive generalized quantities like velocity, momentum, and force.. Apply generalized coordinates to simplify system analysis..

    • Unit 3: Lagrange's Mechanics · 3 hours

      Understand the importance of generalized coordinates and constrained motion.. Derive Lagrange's equations of motion.. Apply the Lagrange method to solve problems..

  13. Week 13Module 3: Lagrange and Hamiltonian Meachanics
    • Unit 4: Hamilton's Mechanics · 3 hours

      Understand the importance of generalized coordinates and constrained motion.. Derive Hamilton's equations of motion.. Apply the Hamilton method to solve problems..

    • Unit 5: Between Newtonian, Lagrangian and Hamiltonian Mechanics · 3 hours

      Transform Newton's law from vector to scalar notation.. Compare Newtonian, Lagrangian, and Hamiltonian mechanics.. Understand the relationships between these three approaches..

Preparing for the exam

What to do
  • Thoroughly review all Tutor-Marked Assignments (TMAs) and their solutions to identify areas of weakness.
  • Create concept maps linking vector analysis (Unit 1) to central force concepts (Units 2-5) for Module 1.
  • Practice deriving equations of motion for different oscillatory systems (simple pendulum, mass-spring) from Module 2.
  • Focus on understanding the mathematical formulations of Lagrangian and Hamiltonian mechanics (Module 3), not just memorizing equations.
  • Solve all example problems in the course material and attempt additional problems from textbooks.
  • Dedicate specific study sessions to each module, breaking down the content into smaller, manageable chunks.
  • Form a study group to discuss challenging concepts and practice problem-solving together.
  • Prioritize understanding the underlying principles rather than rote memorization of formulas.
  • Practice applying the concepts to real-world scenarios to enhance comprehension and retention.
  • Allocate sufficient time for revision and practice exams in the weeks leading up to the final examination.

Questions students ask about this course

What is PHY201 about?

This course introduces fundamental concepts of classical mechanics. It covers motion in central force fields, including vector analysis, conservative forces, and kinematics in polar coordinates. Students will explore energy conservation, planetary motion, and Kepler's laws. The course also delves into oscillatory motion, simple harmonic oscillators, damped and forced oscillations, and coupled oscillations. Finally, it introduces Lagrangian and Hamiltonian mechanics, frames of reference, generalized coordinates, and equations of motion.

How many units does PHY201 have?

PHY201, Classical Mechanics 1, has 28 units across 3 modules, over 62 pages of course material. You can read it one unit at a time.

How many credit units is PHY201?

PHY201 carries 3 credit units, at 200 level in Sciences.

Is PHY201 hard?

PHY201 is rated intermediate level, with advanced mathematical content. It is mostly theoretical and problem solving work.

How long does PHY201 take to study?

About 156 hours of study, spread across its 28 units.

How is PHY201 assessed?

PHY201 is assessed by assignments, tutor marked assignments and final examination.

What do I need before starting PHY201?

Basic Physics Calculus Differential Equations

What can I do with PHY201?

Physicist, Mechanical Engineer, Aerospace Engineer, Data Scientist and Research Scientist.

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