University of Lagos, Nigeria , PHS 101, Introductory Physics I

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Title:

PHS 101, Introductory Physics I

Institution:

University of Lagos, Nigeria

Level:

Degree.

Description:

Section A - General Physics:
1. Units and Dimensions
- Fundamental derived units
- Dimensional analysis
2. Vector Analysis
- Vectors and scalars
- Vector addition and subtraction
- Resolution of vectors
- Relative and resultant velocity
- Equilibrium of forces (moments)
- Multiplication of vectors
- Vector product and dot product.
3. Motion in Straight Line
- Types of motion
- Kinematics and dynamics
- Coordinate systems
- Equation of motion in a straight line
- Uniform motion
- Graphical representation
- Free fall under gravity
- Projectile motion.
4. Forces and Laws of Motion
- Effects of forces
- Types of forces (gravitational electromagnetic, nuclear, weak forces)
- Force - impulse - momentum
- Newton's laws of motion (conservation of (a) linear momentum, (b) energy, collisions, conservative and non-conservative forces). 5. Circular Motion
- Motion in vertical and horizontal circle
- Motion round a curve
- Banking
- Centrifugal and centripetal forces
- Gravitational force (weightless, keplers laws).
6. Rotation of Rigid Bodies
- Moment of inertia of simple bodies
- Angular momentum
- Similarities between equations of motion for translation and rotation.
7. Fluids
- Fluid pressure
- Bernoulli's principle (applications)
- Viscosity
- Laminar flow through a tube
- Stokes law obtained from dimensional analysis
- Surface tension.
8. Elasticity
- Bonds between atoms and molecules
- Hooke's law
- Elasticity of materials (yield point, breaking stress tensile stress and train)
- Young's modulus: experimental determination
- Energy stores in a stretched rod
- Shear modulus and tension in a bar
- Modulus of rigidity
- Bull modulus and Poisson's ratio.

Section B - Heat and Thermodynamics
1. Temperature
- Difference between heat and temperature.
2. Thermometers - types of
- Liquid-in-glass
- Gas
- Resistance (platinum type)
- Thermocouples
- Pyrometers
- Their applications, advantages and disadvantages.
3. Quantity of Heat
- Colorimetery
- Heat capacity
- Specific heat capacity
- Determination of heat capacities by the following methods: mixtures, cooling electrical and continuous flow
- Heat exchange with the surroundings (Newton's law of cooling and its correction)
- The two specific heat of gases, their relation and variation with temperature.
4. Change of State
- Specific latent heat of fusion and vaporization
- Work during change of state
- Determination of the specific latent heat of fusion and vaporization by the methods of
(i) mixtures
(ii) electrical and
(iii) Bunsen ice colorimeter.
5. Gases
- The gas laws: Boyle's, Charles's and pressure laws
- Derivation of the general gas law
- Relationship between the two specific heats of gases using the ideal gas law
- Isothermal and Adiabiatic expansions and the derivation of work done during each of the processes
- Andres work on carbon dioxide
- The critical phenomena and liquiefaction of gases
- The porous-plug experiment
- Joule Kelvin effect and the inversion of temperature
- The real gases (derivation from the ideal gas behaviour PV-P diagrams)
- The Var der Waal equation
- Differences between ideal and real gases.
6. Transfer of Heat
a) Conduction
- Basic theory of heat conduction
- Thermal conductivity, definition of and determination for good (Searle's method) and poor (Lee's method) conductors - Heat flow through a compound wall.
b) Convection
- Definition of
- The convection heat transfer coefficient.
c) Radiation
- Its nature and detection
- The themopile and biolometer
- Black bodies
- Heat and light spectrum
- Energy distribution spectrum
- Provost theory of exchanges
- Kirchhoff's law
- Wiens displacement law
- Rayleigh-Jeans law
- Planck's law
- Solar constant temperature of the sun and the theory of radiation.
7. Thermodynamics
- Difference between thermodynamics and heat transfer
- Thermodynamics terminologies and equilibrium
- 1st law of thermodynamics
- Internal energy relationship between Cp and Cv using
thermodynamics
- Reversible and irreversible processes
- Carnot's theorem
- Heat engine - efficiency and practical cases
- Second law of thermodynamics
- Simple theory of entropy.

Assessment is by assignments and examination.

Programmes for which this course is required or in which it can be included:
Bachelor of Science Honours in Education/Biology
Bachelor of Science Honours in Education/Chemistry
Bachelor of Science Honours in Education/Mathematics
Bachelor of Science Honours in Education/Physics.

Languages:

English

Media and methods employed: Printed text, tV broadcast, radio broadcasts, face-to-face tutorials.

Printed correspondence texts prepared by/for institution, face-to-face tuition, radio, television via cable.

Administrative information:

Classification:

070430 PHYSICS

Date:

01 September 1992 bb
Source: COSIT Brochure

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