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Welcome to the Physics Instructional Resource Association (PIRA) Website.

DCS

PIRA, through the tireless effort of the DCS Committee, has developed a demonstration classification scheme, allowing members to organize and acquire reference material for physics demos. Each demo is assigned a specific number and is placed into the area where they are most used.

These areas include Mechanics, Fluid Mechanics, Oscillations and Waves, Thermodynamics, Electricity and Magnetism, Optics, Modern Physics, Astronomy and Equipment. Topics in each area are listed below.

A complete web listing, with references and search engine for the DCS, is housed at the University of Colorado at Boulder.

Excel and pdf versions of the DCS are also available:


The structure of the classification scheme is as follows:

Example: 1D60.10 howitzer and tunnel

1

Area

  (mechanics)

D

Topic

  (motion in two dimensions)

60

Concept

  (projectile motion)

.10

Demonstration

  (howitzer and tunnel)

The topic and concept divisions of the structure loosely follow the standard textbook organization of chapter and section, although they were created to organize existing demonstrations, not cover the entirety of elementary physics, and therefore skip some areas of the curriculum covered by standard textbooks. The standard curriculum has changed over the years and categories have been created to contain the many demonstrations rendered obsolete by modern textbooks. Some single concept films, videos, and computer programs are sometimes included but such resources have not been systematically identified.

1. Mechanics

1A- Measurement

1C- Motion in One Dimension

1D. Motion in Two Dimensions

1E- Relative Motion

1F- Newton's First Law

1G- Newton's Second Law

1H- Newton's Third Law

1J- Statics of Rigid Bodies

1K- Applications of Newton's Laws

1L- Gravity

1M- Work and Energy

1N- Linear Momentum

1Q- Rotational Dynamics

1R- Properties of Matter

2. Fluid Mechanics

2A- Surface Tension

2B- Statics of Fluids

2C- Dynamics of Fluids

3. Oscillations and Waves

3A- Oscillations

3B- Wave Motion

3C- Acoustics

3D- Instruments

3E- Sound Reproduction

4. Thermodynamics

4A- Thermal Properties of Matter

4B- Heat and the First Law

4C- Change of State

4D- Kinetic Theory

4E- Gas Law

4F- Entropy and the Second Law

5. Electricity and Magnetism

5A- Electrostatics

5B- Electric Fields and Potential

5C- Capacitance

5D- Resistance

5E- Electromotive Force and Current

5F- DC Circuits

5G- Magnetic Materials

5H- Magnetic Fields and Forces

5J- Inductance

5K- Electromagnetic Induction

5M- Semiconductors and Tubes

5N- Electromagnetic Radiation

5G- Magnetic Materials

5H- Magnetic Fields and Forces

5J- Inductance

5K- Electromagnetic Induction

5M- Semiconductors and Tubes

5N- Electromagnetic Radiation

6. Optics

6A- Geometrical Optics

6B- Photometry

6C- Diffraction

6D- Interference

6E- Interference

6F- Color

6H- Polarization

6J- The Eye

6Q- Modern Optics

7. Modern Physics

7A- Quantum Effects

7B- Atomic Physics

7D- Nuclear Physics

7E- Elementary Particles

7F- Relativity

8. Astronomy

8A- Planetary Astronomy

8B- Stellar Astronomy

8C- Cosmology

9. Equipment

9A- Support Systems

9B- Electronic

9C- Mechanica