Flashcards
Waves and the Electromagnetic Spectrum: Key Facts
Flashcards do conjunto (24)
- 1what is the relationship between frequencies and wavelength?the higher the frequency the shorter the wavelengths
- 2who discovered infrared radiation?herschel in 1800
- 3what happens when white light goes through a prism?it creates a spectrum of colours
- 4what happens to the temp in the spectrum?it increases from violet, being the coldest to red being the hottest
- 5where is the highest temp?past the end of visible light where there is infrared radiation
- 6who discovered ultraviolet radiation?Ritter in 1801
- 7what happens to silver chloride when it is exposed to light?it turns from black to white
- 8which end of the spectrum did the silver chloride change colour fastest?near the blue end
- 9what happened when Ritter placed the silver chloride past the blue end?it changed colour fastest and he discovered ultraviolet radiation
- 10what is wavelength?the distance from one peak to the next
- 11what is frequency?how many complete waves there are in a second
- 12what is frequency measured in?frequency is measured in hertz
- 13what are hertz?hertz are 1 wave per second
- 14what are killer hertz (kHz)1000 hz
- 15what is amplitude?amplitude is just the height of the waves
- 16what do waves do?transfer energy and information without transferring matter
- 17how do you work out speed?speed= frequency x wavelength
- 18how are speed, distance and time linked?speed= distance
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time - 19what are most waves?transvers
- 20what are some waves?longitudinal
- 21how do transverse waves vibrate?90 degrease to the direction of travel
- 22how do longitudinal waves vibrate?the same direction as travel
- 23what are transverse waves?light and other EM waves
s-waves
waves on strings and springs
ripples on water - 24what are transverse waves?sound and ultrasound
p-waves
a slinky spring when you push and pull the end
Informações
- Descrição
- FlashCards sobre Sem título, criado por Daisy888 em 13-05-2014.
- Criado por
- Daisy888 · mai 2014
- Atualizado
- 19 fev 2016
- Visualizações
- 12
- Avaliação