1. What is electromagenetic waves??
A wave that consist of a combination of oscillating electric & magnetic fields pependicular to each other.
Watch this!
2. ..its properties???
- a transverse wave
- carries energy along it
- dont need medium to travel, i.e can travel in vacuum
- electrically neutral
- electric+magnetic field oscillates at right angle (pependicular) to each other and to the direction of propagation
-undergoes reflection,refraction, diffraction & interference
-move with speed of light
3. ..its SPECTRUM????
the spectrum is a must to be remembered, could come out in Paper 1
shortest wavelength: Gamma ray
largest wavelength: Radio wave
lowest freqency: Radio wave
highest freqency: Gamma ray
4. ....its application ????
U need to remember at least 2 applications for each of the spectrum.
Watch these video..it might help u to memorize them.
4 comments:
salam cikgu,sy tahu fizik mmg sronok tp nape saya susah nak faham???sy nak tau cam ne nak bagi senag paham ttg semua tajuk dlm fizik??harap cikgu blh bantu..dan saya masih lemah ttg format nak jawab exam???baleh cikgu tlg??
nk fhm fizik kena fhm konsep..maksudnya..kena tau experiment..then macm mana nak relate hypothesis dgn conclusion. Then relate dgn formula..
Cthnya..setiap formula fizik, principle & law..dtg dari experiment. So make sure u belek2 xperiment tu, kasi fhm then relate dngan formula utk buat calculation. Then apply the whole concept utk fhmkan aplikasi dlm alat2 yang dicipta berdasar frmula, principle atau fizik law yg berkaitan
hmm..ble dh fham..,tp sy xtau mcm mne nk jwab soaln tu dgn cara yg btul..kdg2 sampai lari dpd jwpn..mcm mne ek?
sy tk pasti soalan paper apa kamu ada prblm..but in gneral fhmkan soalan..jwb based on apa yg dia minta shj..jgn exaggerate..
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