Topic 5 🌈⚡️ Flashcards
What can ultraviolet be used for?
Security marking
Disinfecting water
What can visible light be used for?
Vision - human eyes can only see a limited range of frequencies
Photosynthesis
Optical fibre
What are microwaves used for?
Satellite
Communications
Ovens
Radar
Cell phone use
What are radio waves used for?
Radio communications
Broadcasting
Remote controls
Broadcasting
What are infrared rays used for?
Thermal imaging
Short-range communication
Heating
What are gamma rays used for?
Cancer detection
Cancer treatment
Highly penetrating
What are X-rays used for?
Body imaging
Identifying bone fracture and breakages
What is the danger of x rays?
Cell mutation
Leading to cancer
What are the dangers of gamma rays?
Cell mutations causing cancers
High energy waves ionise atoms
What are the dangers of ultraviolet waves?
Surface cell damage leading to skin cancer
What are the dangers of infrared rays?
Damage to eyes
Causes skin to burn
What are the dangers of microwaves?
Internal heating of body cells
Greater exposure to waves means…
Greater risk
Controlling exposure
To remember order of electromagnetic spectrum?
Giant Xylophones Usually Live In Music Rooms
Gamma rays have a ___ frequency and a ____ wavelength
High frequency and a short wavelength
