Physics Revision

Em Attwood
Mind Map by , created about 6 years ago

GCSE Science (Physics) Mind Map on Physics Revision, created by Em Attwood on 09/01/2013.

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Em Attwood
Created by Em Attwood about 6 years ago
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Physics Revision
1 MEDICAL USES
1.1 X-Rays
1.1.1 Part of the ELECTROMAGNETIC SPECTRUM
1.1.2 Properties make them USEFUL IN MEDICINE
1.1.2.1 Produce DETAILED IMAGES
1.1.2.1.1 Can be used for DENTAL TREATMENT
1.1.2.1.1.1 DECAYED teeth ABSORB LESS
1.1.2.1.2 Traditionally 2D
1.1.2.1.2.1 CT SCANS look from MORE THAN ONE ANGLE to produce 3D

Annotations:

  • CT SCAN Computerised Tomography Scan
1.1.2.2 Radiography TREATS CANCER
1.1.3 HAZARDOUS
1.1.3.1 PRECAUTIONS taken to protect medical staff
1.1.4 ELECTROMAGNETIC WAVES
1.1.5 TRANSFER energy and are TRANSVERSE WAVES

Annotations:

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

Annotations:

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

Annotations:

  • TRANSMITTED Pass through
1.2 ULTRASOUND
1.2.1 HIGH FREQUENCY sound waves
1.2.2 DIAGNOSE DISEASE
1.2.3 Often used in PRE-NATAL scans

Annotations:

  • PRE-NATAL Before birth
1.2.4 Medical TREATMENT of KIDNEY STONES

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