phys help: how to memorise electromagnetic spectrum

[+evenstar]

radio waves, microwaves, infrared, visible light, uv, x ray, gamma ray

that's the electromagnetic spectrum, but how did you ppl memorise it during your exams? i keep messing up the order somehow...

phys pros come help!

 

[overdodo]

"radio waves, microwaves, infrared, visible light, uv, x ray, gamma ray"

in visible its
ROYGBIV

red orange yellow green blue indigo violet
(you can use mnemonics for this part, http://en.wikipedia.org/wiki/ROYGBIV, there is even a song about it)

then on the left, lower energy is infrared
on the right is higher energy, ultraviolet.

and you're left with radio waves, microwaves, xray and gamma.

remember gamma rays have more energy than xray then we're left with 2

radiowaves have less energy than microwaves

and thats about it


cheers

 

[+evenstar]

i'm trying to come up with sth like ROYGBIV (that i know) for the EM spectrum so tt i can rememb faster..argh

 

[mojopy]

hmm... my physics tutor taught me this:

Ronald Macdonal I Love U Xiong Ge


the other direction:
Grandma X Usually Like Indian Muslim Rojak

 

[+evenstar]

thanks!

 

[Klose]

Real Men Ignore Very Ugly eX Girlfriends

Radio Micro Infrared Visible UV Xray Gamma

That's how I remembered mine for my A lvls :bsmilie:

 

[+evenstar]

thanks for the inputs ppl!

any way to memorise the exact values of the EM waves? i can only remember that visible light is 400~700nm

 

[antacid]

i usually just carve everything onto my table before the exam..makes memorising easier

 

[xray]

i usually just carve everything onto my table before the exam..makes memorising easier

:nono:

 

[Del_CtrlnoAlt]

i usually just carve everything onto my table before the exam..makes memorising easier

:thumbsup:

 

[adamadam]

Close your eyes, open your eyes at the ordered list without reading, just look, close your eyes, save it. Read it later.

 

[Sion]

i usually just carve everything onto my table before the exam..makes memorising easier

You can also tatto the notes on your tights. But make sure you wear a short skirt on exam day. :bsmilie:

 

[yanyewkay]

i never had to memorise it. need meh?

 

[eikin]

i never had to memorise it. need meh?

i don't remember the need to memorise it for 'A' levels also *scratch head*

 

[+evenstar]

now need le...

 

[+evenstar]

You can also tatto the notes on your tights. But make sure you wear a short skirt on exam day. :bsmilie:

err..i don't wear skirts...

 

[Youhong]

Godzilla X Uses Violence In Meeting Room

 

[the mac 13]

I always remember that Radiowaves is on one end because it can travel the furthest. Ok then the rest I forget already. :sticktong :bigeyes: :bsmilie:

Oh O levels need also!

 

[skf]

i'm trying to come up with sth like ROYGBIV (that i know) for the EM spectrum so tt i can rememb faster..argh

Try this:

Run Off Young Girls, Boys In View :bsmilie:

:cheers:

 

[Chris Lim]

Memorising it may not be the best thing to do. How about just trying sth more fun to remember it? Like draw a graphic design or sth and photograph it? when ever u need to revise it just look at the photo then at least u got sth visual to look at. It takes 12 frames of images in a consecutive sequence to make sense to ur mind. A photo is worth more then 12 frames. =) try it! it works for me when i need to remember sth.