Electromagnetic Waves Flashcards
Order of em waves,, high-low
Gamma, X-rays, uv, visible light, infrared, microwaves, radio waves
Transverse def
- particles move up and down
- perpendicular to wave direction
- eg - visible light, X-rays
Longitudinal def
- particles travel backwards and forwards
- parallel to wave direction
- eg - sound waves
Amplitude units
Amps
Frequency units
Hz
Wave length units
Lander
Wave def
Waves transfer energy through a medium without transferring matter
What direction | dense to denser
Towards normal
What direction | denser to dense
Away from the normal
Gamma uses
Radiotherapy
Sterilise food and medical equipment
X-rays
See inside ppl
Airport security
Astronomers
Ultra violet uses
Sun tan
Detecting forged bank notes
Kill microbes
Sterilise
Visible light uses
See things
Disks, cd, dvd
Infrared uses
Police helicopter
Remote controls
Heal sport injuries
Micro waves uses
Cooking
Mobile phones
WiFi
Speed cameras
Radio wave uses
Communications
Satellite transmissions
Radio wave danger
Cancer - leukaemia
Microwave dangers
Cataracts
Skin cancer
Infrared dangers
Police helicopters
Remote controls
Visible light dangers
Retina damage
Gamma rays dangers
Cell damage
Systemic cancers
Uv dangers
Cataracts
Skin cancer
X-rays danger
Bone cancers
Cell mutations
Centi
X10-2
Milli
X10-3
Micro
X10-6
Nano
X10-9
Pico
X10-12
Killo
X103
Mega
X106
Giga
X109
Radio waves
Refract
Microwaves
Transmit
