Physics Revision

Beschreibung

GCSE Science (Physics) Mindmap am Physics Revision, erstellt von Em Attwood am 01/09/2013.
Em Attwood
Mindmap von Em Attwood, aktualisiert more than 1 year ago
Em Attwood
Erstellt von Em Attwood vor etwa 11 Jahre
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Zusammenfassung der Ressource

Physics Revision
  1. MEDICAL USES
    1. X-Rays
      1. Part of the ELECTROMAGNETIC SPECTRUM
        1. Properties make them USEFUL IN MEDICINE
          1. Produce DETAILED IMAGES
            1. Can be used for DENTAL TREATMENT
              1. DECAYED teeth ABSORB LESS
              2. Traditionally 2D
                1. CT SCANS look from MORE THAN ONE ANGLE to produce 3D

                  Anmerkungen:

                  • CT SCAN Computerised Tomography Scan
              3. Radiography TREATS CANCER
              4. HAZARDOUS
                1. PRECAUTIONS taken to protect medical staff
                2. ELECTROMAGNETIC WAVES
                  1. TRANSFER energy and are TRANSVERSE WAVES

                    Anmerkungen:

                    • TRANSVERSE WAVES Oscillations are perpendicular to the energy transfer.
                    • OSCILLATIONS The 'waves' on a radio wave
                    1. Very SHORT wavelength
                      1. Roughly the SIZE OF AN ATOM
                      2. Cause IONISATION

                        Anmerkungen:

                        • IONISATION The adding or removing of electrons in atoms and molecules
                        1. Can damage DNA cells
                        2. Turn PHOTOGRAPHIC FILM black
                          1. In the same way as visible light
                          2. Absorbed/stopped by METAL and BONE
                            1. TRANSMITTED by HEALTHY TISSUE

                              Anmerkungen:

                              • TRANSMITTED Pass through
                          3. ULTRASOUND
                            1. HIGH FREQUENCY sound waves
                              1. DIAGNOSE DISEASE
                                1. Often used in PRE-NATAL scans

                                  Anmerkungen:

                                  • PRE-NATAL Before birth
                                  1. Medical TREATMENT of KIDNEY STONES
                                Zusammenfassung anzeigen Zusammenfassung ausblenden

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