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186425
Physics Revision
Description
GCSE Science (Physics) Mind Map on Physics Revision, created by Em Attwood on 01/09/2013.
No tags specified
physics
science
science
physics
gcse
Mind Map by
Em Attwood
, updated more than 1 year ago
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Created by
Em Attwood
about 11 years ago
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Resource summary
Physics Revision
MEDICAL USES
X-Rays
Part of the ELECTROMAGNETIC SPECTRUM
Properties make them USEFUL IN MEDICINE
Produce DETAILED IMAGES
Can be used for DENTAL TREATMENT
DECAYED teeth ABSORB LESS
Traditionally 2D
CT SCANS look from MORE THAN ONE ANGLE to produce 3D
Annotations:
CT SCAN Computerised Tomography Scan
Radiography TREATS CANCER
HAZARDOUS
PRECAUTIONS taken to protect medical staff
ELECTROMAGNETIC WAVES
TRANSFER energy and are TRANSVERSE WAVES
Annotations:
TRANSVERSE WAVES Oscillations are perpendicular to the energy transfer.
OSCILLATIONS The 'waves' on a radio wave
Very SHORT wavelength
Roughly the SIZE OF AN ATOM
Cause IONISATION
Annotations:
IONISATION The adding or removing of electrons in atoms and molecules
Can damage DNA cells
Turn PHOTOGRAPHIC FILM black
In the same way as visible light
Absorbed/stopped by METAL and BONE
TRANSMITTED by HEALTHY TISSUE
Annotations:
TRANSMITTED Pass through
ULTRASOUND
HIGH FREQUENCY sound waves
DIAGNOSE DISEASE
Often used in PRE-NATAL scans
Annotations:
PRE-NATAL Before birth
Medical TREATMENT of KIDNEY STONES
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