Physics (Laboratory)

Module Information

Module Semester:
1
Module Part:
Laboratory
Sub-Module Code:
245102
Hours per Week:
2
Module ECTS Credits:
6
Available to ERASMUS Students:
No


Module Study Targets

Students should be able to:

  • Calculate mean, standard deviation, propagation of errors in measurement sets.
  • Generate graphs of laboratory measurements.
  • Produce linear expressions of exponential, logarithmic and power equations.
  • Define the speed, acceleration, kinetic energy, work.
  • Compute the position, velocity and acceleration mobile if the relation (a) power-position, (b) speed-strength, (c) Speed-position and (d) accelerate-position is given.
  • Define the conservation conditions of fields.
  • Calculate whether a given field is conservative.
  • Calculate the transportation quantities for simple oscillations, forced oscillations and oscillations that loose energy.
  • Calculate the quality factor of the RLC oscillation circuit in series and the quality factor of the forced mechanical oscillations.
  • Define the Fermi level.
  • Determine the energy and the no-charge area of the p-n diodes.
  • Create the diagrams of the energy versus the position in diodes.
  • Define the avalanche phenomenon.
  • Write the four Maxwell’s equations near and far of dielectric and magnetic media.
  • Define the displacement current.


Module Acquired Abilities

Physics enhances the following general abilities:

  • Analysis and synthesis of data and information by utilising modern and necessary technologies
  • Critical, free and creative thinking which enhances the generation of innovative methods and the making of decisions
  • Group and independent work
  • Respect the natural environment


Module Description

This includes the following laboratory exercises: (13 weeks total)

LABORATORY EXERCISES IN MECHANICS (4)

  • Free oscillating spring-elastic constant calculation (Calculation spring constant) [EM-EXERCISE 6]
  • Study of oscillating pendulum-calculation gravitational acceleration, quality factor (Measurement gravitational acceleration with a simple pendulum) [EM-EXERCISE 5A]
  • Stationary mechanical waves (measurement of the speed of sound with the Quincke method) [EM-EXERCISE 12] and & Study motion theorem energy project (Aerotrochia) [EM-EXERCISE 4]
  • Travelling mechanical waves-db & dbm units (Measurement of sound intensity and
  • determination of the attenuation coefficient) [EM-EXERCISE 11]

LABORATORY EXERCISES IN ELECTRICITY ELECTRONIC PHYSICS & ELECTROMAGNETISM (7)

  • Measurement of electromotive force and the internal resistor of voltage sources- capacitor's capacity measurement) [EM-EXERCISE 5 & 6]
  • Resonance of RLC circuits-quality factor calculation circuit (the RLC circuit behavior analysis in alternating current) [EM-EXERCISE 10]
  • Thermionic electron emission from metals [EM-Exercises 11] Study and photo conductive Elements- photovoltaic elements (photoconducting elements) [EM-EXERCISE 12]
  • Light emitting diode (LED) [EM EXERCISES 17 & 18]
  • Contact-diodes Zener diodes [EM EXERCISE 19]
  • Physics Laser radiation study [EM EXERCISE 15]
  • Attenuation of gamma radiation in matter-GM Counter [EM EXERCISE 16]

The above include additional theoretical teaching in the following passages

1.ANALYSIS & PRESENTATION OF LABORATORY MEASUREMENTS (5 hours)

A. ANALYSIS OF ERRORS (2.5 hours)

  • Importance of Error Analysis theory
  • Measurements
  • Actual value-True value
  • Probability-Distributions of measurement results
  • True error-Uncertainty-Relative Error
  • Bias-Random errors
  • Instrumental uncertainty
  • Mean-Average Error-bias
  • Other statistical moments
  • CI-Significant digits Scientific presentation of results-Rounding
  • Error propagation
  • Estimates of mean and error
  • Examples of calculations gcc and gfortran
  • Examples of actual measurement examples

B. PRESENTATION OF LABORATORY MEASUREMENTS (2.5 hours)

  • Graphs in scientific presentation
  • Presentations (trends) -Standard-equations
  • Slope of straight line- Experimental definitions
  • Curves-Common types
  • Tangent-Experimental definition
  • slope at point-Experimental Search
  • Adjusting a straight line
  • Method of least squares-x2-Likelihood-Weighting of the results
  • Spearman's coefficient r2
  • Estimation of errors
  • Adjusting polynomial coefficients
  • Multiple regression-Stepwise regression
  • Other methods (PCA, Multivariate methods, etc.)
  • Examples of actual measurements

2. SENSORS IN LABORATORY MEASUREMENTS (2 hours)

Measurements of electrical systems

A. COIL MULTIMETERS (0.5 hours)

  • Fundamental physical principles
  • Description
  • Operating Principle
  • Use as multimeter as amerometers and voltometers
  • Extending the multimeter measuring range
  • Select the most suitable voltometer
  • Measuring Voltage with Multimeter
  • Current measurement with multimeter

B. OSCILLOSCOPE (1 hour)

  • Description & parts
  • Electronic gun
  • Generator
  • Amplifiers of horizontal & vertical deviations
  • Adjusting the beam intensity
  • Beam deflection systems-electrostatic, magnetic
  • Basic operation buttons
  • Measuring Angles with the oscilloscope
  • DC voltage measurement
  • AC voltage measurement
  • Composition-contribution mutual vertical oscillations Lissajous-Curves
  • Measurement of frequency through time difference
  • Measurement fof requency through Lissajous curves

C. SENSORS (0.5 hours)

  • Deformation sensors
  • Pressure sensors
  • Temperature sensors
  • Humidity sensors

Module Student Evaluation

Assessment Language: Greek and English for Erasmus students.

Qualification theoretical part (60%)

  1. A written final examination (50%) comprising the methodological solving of exercises and the and analysis of issues in mechanics, electromagnetism, oscillations and waves.
  2. Participation in project (5%)
  3. Participation in class (5%)

Evaluation laboratory portion (40%)

  1. Laboratory Practice
  2. Individual or group (maximum 3 people) report to each laboratory exercise that includes a description of the exercise, presentation of measurement, presentation of results (calculations, charts, etc.) and drawing conclusions. (20%).
  3. Weekly oral examination at issue in making laboratory exercise (40%)
  4. In the presence of (10%)
  5. Final written examination (30%)

In the theoretical part are able isobars exculpatory progress (2) during the semester.

The criteria are posted on the site http://dniko.herokuapp.com/


Bibliography

  • H.D. Young, "Physics", Pearson 13th edition, 2011
  • M. Aloson, E. Finn, "Fundamental University Physics", 1992
  • J. Willey and Sons, "Physics", 1992
  • "Physics for Scientists and Engineers", Serway – SGSS, 1992
  • McGraw-Hill, "Berkley Physics Courses", 1978

Module Links