Describe Airport Metal Detectors using Pulse Induction (PI) (SECURITY SCANNING).

1. Dynamics Suggestions – Frames of Reference – does the scanner move or the object move? – is the orientation of atomic particles detected? – Newton’s Laws – how are these laws used as a principle of operation? 2. Energy and Momentum Suggestions – Momentum – is Conservation of Momentum used as principle of operation? – Energy – what energy is directed at object? – is energy absorbed, transmitted, or both? – what energy transformations take place in scanner and/or object? 3. Gravitational, Electric, and Magnetic Fields Suggestions – how are gravitational fields important for satellites? – how are magnetic fields used by the medical scanner? 4. Waves and Light Suggestions – Electromagnetic Radiation – how is EM radiation used by the scanner? 5. Modern Physics Suggestions – how do Wave and Particle Theories relate to EM radiation used by scanner? – is nuclear energy used by the satellite or medical scanner? Include the following in your report: a) What physics principles are used for the technology? b) What social, economic and environmental effects (if any) does the technology have on individual users and society in general? c) How does the technology work? d) Books or Internet sites where you got your information