Frigør det fulde potentiale i dine projekter.
Prøv MeisterTask gratis.
Har du ingen konto?
Tilmeld dig Gratis
Brows
Fremhævede Maps
Kategorier
Business
Design
Uddannelse
Underholdning
Fritid
Marketing
Produktivitet
Opsummeringer
Teknologi
Andre
Sprog
English
Deutsch
Français
Español
Português
Nederlands
Dansk
Русский
日本語
Italiano
简体中文
한국어
Andet
Vis hele kortet
Kopier og rediger map
Kopier
Electromagnetic Waves
Li Guan Tan
Følg
Kom i gang.
Det er Gratis
Tilmeld dig via Google
eller
tilmeld
med din email adresse
Lignende mindmaps
Mindmap-oversigt
Electromagnetic Waves
af
Li Guan Tan
1. Radiowaves
1.1. longest wavelength and smallest energy electromagnetic wave
1.2. so small it is impossble to detect them without proper instrument
1.3. use in the exploration of space to record distance of objects
1.4. produced by oscillating antenna
2. microwaves
2.1. Microwaves is a misnomer
2.2. Wavelength range of this radiation is about 3.0cm to 1.0 cm
3. Infra-red waves
3.1. JUst below the visible spectrum is infrared radiation
3.2. they are longer wavelength light rays
3.3. many molecules tend to resonate or vibrate easily when exposed to infrared radiation
4. Visible light
4.1. Occupying a very small part of the entire electromagnetic spectrum
4.2. the only range of energies that human eyes can detect
4.3. the visible spectrum conveys the world to our brains in brilliant hues and shades
5. X-ray
5.1. a newer type of radiation
5.2. has the ability to pass through many materials that absorb visible light
5.3. highly energetic form of light not visible to human eyes
5.4. objects at very high temperature emit most of their energy as X-rays
6. Electromagnetic waves are not mechanical waves
7. All electromagnetic waves are transverse waves that travel with the same speed in vacuo and state the magnitude of this speed.
8. Group
8.1. radio waves
8.2. infra-red
8.3. visible light
8.4. ulta violet
8.5. X-rays
8.6. gamma rays
9. travel at the speed of 3 x 10^8 m/s in vacuum
10. Ultra violet
10.1. Discovered in 1801 because of its effects on photogenic plates
10.2. the sun is a strong emitter of UV radiation
10.3. the earth is shielded by the ozone layer
11. Gamma rays
11.1. Highest energy electromagnetic waves
11.2. very short wavelength
11.3. caused by radioactive decay also produced by nuclear fusion
11.4. unstable nuclei emit gamma rays
11.5. more energetic than x rays and can pass through concrete and metal
11.6. very dangerous can kill living cells
11.7. seen from nuclear bomb
11.8. used in cancer treatment
Kom i gang. Det er gratis!
Forbind med Google
eller
Tilmeld